./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:12:41,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:12:41,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 01:12:41,542 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:12:41,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:12:41,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:12:41,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:12:41,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:12:41,567 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:12:41,568 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:12:41,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:12:41,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:12:41,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:12:41,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:12:41,571 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:12:41,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:12:41,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:12:41,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:12:41,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:12:41,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:12:41,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:12:41,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:12:41,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:12:41,579 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:12:41,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:12:41,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:12:41,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:12:41,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:12:41,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:12:41,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:12:41,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:12:41,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:12:41,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:12:41,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:12:41,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:12:41,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:12:41,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:12:41,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:12:41,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:12:41,592 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_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdcb32e90fffda272ef4414cda96d9fa59a53e22555da4af86a588968a9c4dd7 [2023-11-29 01:12:41,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:12:41,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:12:41,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:12:41,836 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:12:41,837 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:12:41,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2023-11-29 01:12:44,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:12:45,095 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:12:45,095 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2023-11-29 01:12:45,137 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/data/eac28042f/7aa5696a9b0c43a0a3952dbb953a45a7/FLAG27da80f4b [2023-11-29 01:12:45,151 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/data/eac28042f/7aa5696a9b0c43a0a3952dbb953a45a7 [2023-11-29 01:12:45,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:12:45,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:12:45,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:12:45,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:12:45,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:12:45,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:12:45" (1/1) ... [2023-11-29 01:12:45,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9682175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:45, skipping insertion in model container [2023-11-29 01:12:45,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:12:45" (1/1) ... [2023-11-29 01:12:45,310 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:12:47,745 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_9dd2f74d-c57a-4ce5-8000-38347ac96577/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2023-11-29 01:12:47,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:12:47,872 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:12:47,975 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"); [5920] [2023-11-29 01:12:47,977 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)); [5927] [2023-11-29 01:12:47,977 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5935-5936] [2023-11-29 01:12:47,981 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)); [6070] [2023-11-29 01:12:47,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [6077] [2023-11-29 01:12:47,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6180] [2023-11-29 01:12:47,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6187] [2023-11-29 01:12:47,995 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)); [6416-6417] [2023-11-29 01:12:47,998 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)); [6445-6446] [2023-11-29 01:12:47,999 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" (84), "i" (12UL)); [6479-6480] [2023-11-29 01:12:48,001 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" (96), "i" (12UL)); [6503-6504] [2023-11-29 01:12:48,011 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/linux/netdevice.h"), "i" (507), "i" (12UL)); [6839-6840] [2023-11-29 01:12:48,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6845] [2023-11-29 01:12:48,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8805] [2023-11-29 01:12:48,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8861] [2023-11-29 01:12:48,091 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)skb->data) [8969] [2023-11-29 01:12:48,094 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)skb2->data) [9016] [2023-11-29 01:12:48,097 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9060] [2023-11-29 01:12:48,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9406] [2023-11-29 01:12:48,114 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9412] [2023-11-29 01:12:48,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9430] [2023-11-29 01:12:48,241 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_9dd2f74d-c57a-4ce5-8000-38347ac96577/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i[355549,355562] [2023-11-29 01:12:48,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:12:48,446 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:12:48,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48 WrapperNode [2023-11-29 01:12:48,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:12:48,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:12:48,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:12:48,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:12:48,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:48,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:48,749 INFO L138 Inliner]: procedures = 409, calls = 2719, calls flagged for inlining = 209, calls inlined = 190, statements flattened = 7121 [2023-11-29 01:12:48,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:12:48,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:12:48,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:12:48,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:12:48,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:48,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:48,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:50,591 INFO L175 MemorySlicer]: Split 1170 memory accesses to 29 slices as follows [8, 16, 28, 17, 8, 4, 7, 41, 7, 7, 5, 6, 5, 4, 2, 2, 4, 4, 900, 2, 2, 46, 8, 2, 3, 8, 8, 8, 8]. 77 percent of accesses are in the largest equivalence class. The 359 initializations are split as follows [8, 12, 28, 2, 8, 0, 7, 41, 7, 7, 5, 6, 5, 4, 0, 2, 4, 4, 164, 0, 2, 0, 8, 0, 3, 8, 8, 8, 8]. The 222 writes are split as follows [0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 202, 1, 0, 16, 0, 1, 0, 0, 0, 0, 0]. [2023-11-29 01:12:50,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:50,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:50,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:50,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:50,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:50,797 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:50,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:12:50,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:12:50,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:12:50,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:12:50,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (1/1) ... [2023-11-29 01:12:50,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:12:50,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:12:50,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:12:50,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:12:50,925 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2023-11-29 01:12:50,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2023-11-29 01:12:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-29 01:12:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-29 01:12:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-29 01:12:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-29 01:12:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-29 01:12:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-29 01:12:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_state_machine_work [2023-11-29 01:12:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_state_machine_work [2023-11-29 01:12:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2023-11-29 01:12:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2023-11-29 01:12:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-29 01:12:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-29 01:12:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-29 01:12:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-29 01:12:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2023-11-29 01:12:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2023-11-29 01:12:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-29 01:12:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-29 01:12:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2023-11-29 01:12:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2023-11-29 01:12:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2023-11-29 01:12:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2023-11-29 01:12:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2023-11-29 01:12:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2023-11-29 01:12:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-29 01:12:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-29 01:12:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-29 01:12:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-29 01:12:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2023-11-29 01:12:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2023-11-29 01:12:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2023-11-29 01:12:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2023-11-29 01:12:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-29 01:12:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-29 01:12:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-29 01:12:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-29 01:12:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-29 01:12:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-29 01:12:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2023-11-29 01:12:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2023-11-29 01:12:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_set_mac_address [2023-11-29 01:12:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_set_mac_address [2023-11-29 01:12:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2023-11-29 01:12:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2023-11-29 01:12:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2023-11-29 01:12:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2023-11-29 01:12:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-29 01:12:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-29 01:12:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-29 01:12:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-29 01:12:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-29 01:12:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-29 01:12:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2023-11-29 01:12:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2023-11-29 01:12:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-29 01:12:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-29 01:12:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-29 01:12:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-29 01:12:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:12:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-29 01:12:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-29 01:12:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2023-11-29 01:12:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2023-11-29 01:12:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2023-11-29 01:12:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2023-11-29 01:12:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-29 01:12:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-29 01:12:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-29 01:12:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-29 01:12:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-29 01:12:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-29 01:12:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2023-11-29 01:12:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-29 01:12:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-29 01:12:50,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2023-11-29 01:12:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2023-11-29 01:12:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2023-11-29 01:12:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2023-11-29 01:12:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#21 [2023-11-29 01:12:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#22 [2023-11-29 01:12:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#23 [2023-11-29 01:12:50,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#24 [2023-11-29 01:12:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#25 [2023-11-29 01:12:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#26 [2023-11-29 01:12:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#27 [2023-11-29 01:12:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#28 [2023-11-29 01:12:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-29 01:12:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-29 01:12:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-29 01:12:50,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-29 01:12:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-29 01:12:50,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-29 01:12:50,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-29 01:12:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-29 01:12:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-29 01:12:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-29 01:12:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-29 01:12:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-29 01:12:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-29 01:12:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2023-11-29 01:12:50,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2023-11-29 01:12:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2023-11-29 01:12:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2023-11-29 01:12:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2023-11-29 01:12:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2023-11-29 01:12:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2023-11-29 01:12:50,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2023-11-29 01:12:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#25 [2023-11-29 01:12:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#26 [2023-11-29 01:12:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#27 [2023-11-29 01:12:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#28 [2023-11-29 01:12:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_5 [2023-11-29 01:12:50,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_5 [2023-11-29 01:12:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2023-11-29 01:12:50,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2023-11-29 01:12:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:12:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:12:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:12:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:12:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-29 01:12:50,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-11-29 01:12:50,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-29 01:12:50,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-29 01:12:50,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#17 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#18 [2023-11-29 01:12:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#19 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#20 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#21 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#22 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#23 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#24 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#25 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#26 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#27 [2023-11-29 01:12:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#28 [2023-11-29 01:12:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-29 01:12:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-29 01:12:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-29 01:12:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-29 01:12:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-29 01:12:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-29 01:12:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-29 01:12:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-29 01:12:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2023-11-29 01:12:50,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#17 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#18 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#19 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#20 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#21 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#22 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#23 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#24 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#25 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#26 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#27 [2023-11-29 01:12:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#28 [2023-11-29 01:12:50,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-29 01:12:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-29 01:12:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2023-11-29 01:12:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2023-11-29 01:12:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-29 01:12:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-29 01:12:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2023-11-29 01:12:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2023-11-29 01:12:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-29 01:12:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-29 01:12:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2023-11-29 01:12:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2023-11-29 01:12:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2023-11-29 01:12:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2023-11-29 01:12:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-29 01:12:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-29 01:12:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2023-11-29 01:12:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2023-11-29 01:12:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2023-11-29 01:12:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2023-11-29 01:12:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:12:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2023-11-29 01:12:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2023-11-29 01:12:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2023-11-29 01:12:50,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2023-11-29 01:12:50,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:12:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_5 [2023-11-29 01:12:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_5 [2023-11-29 01:12:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2023-11-29 01:12:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2023-11-29 01:12:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-29 01:12:50,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-29 01:12:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:12:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:12:50,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-29 01:12:50,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-29 01:12:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-29 01:12:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-29 01:12:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-29 01:12:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-29 01:12:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-29 01:12:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-29 01:12:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-29 01:12:50,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-29 01:12:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2023-11-29 01:12:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2023-11-29 01:12:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2023-11-29 01:12:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2023-11-29 01:12:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2023-11-29 01:12:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2023-11-29 01:12:50,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#27 [2023-11-29 01:12:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#28 [2023-11-29 01:12:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2023-11-29 01:12:50,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2023-11-29 01:12:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2023-11-29 01:12:50,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2023-11-29 01:12:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_printk [2023-11-29 01:12:50,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_printk [2023-11-29 01:12:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-29 01:12:50,959 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-29 01:12:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2023-11-29 01:12:50,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2023-11-29 01:12:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-29 01:12:50,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-29 01:12:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-29 01:12:50,960 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-29 01:12:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2023-11-29 01:12:50,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2023-11-29 01:12:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-11-29 01:12:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-11-29 01:12:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2023-11-29 01:12:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2023-11-29 01:12:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2023-11-29 01:12:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2023-11-29 01:12:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_timeout_work [2023-11-29 01:12:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_timeout_work [2023-11-29 01:12:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-29 01:12:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-29 01:12:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-29 01:12:50,962 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-29 01:12:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:12:50,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:12:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2023-11-29 01:12:50,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2023-11-29 01:12:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-29 01:12:50,962 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-29 01:12:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2023-11-29 01:12:50,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2023-11-29 01:12:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-29 01:12:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-29 01:12:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-29 01:12:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-29 01:12:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-29 01:12:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-29 01:12:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-29 01:12:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-29 01:12:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#21 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#22 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#23 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#24 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#25 [2023-11-29 01:12:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#26 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#27 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#28 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-29 01:12:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2023-11-29 01:12:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#23 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#24 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#25 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#26 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#27 [2023-11-29 01:12:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#28 [2023-11-29 01:12:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-29 01:12:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-29 01:12:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-29 01:12:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-29 01:12:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-29 01:12:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-29 01:12:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2023-11-29 01:12:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2023-11-29 01:12:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-29 01:12:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-29 01:12:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-29 01:12:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-29 01:12:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2023-11-29 01:12:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2023-11-29 01:12:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-29 01:12:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-29 01:12:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-29 01:12:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-29 01:12:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-29 01:12:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-29 01:12:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2023-11-29 01:12:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2023-11-29 01:12:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 01:12:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 01:12:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 01:12:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 01:12:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2023-11-29 01:12:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#19 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#20 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#21 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#22 [2023-11-29 01:12:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#23 [2023-11-29 01:12:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#24 [2023-11-29 01:12:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#25 [2023-11-29 01:12:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#26 [2023-11-29 01:12:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#27 [2023-11-29 01:12:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#28 [2023-11-29 01:12:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 01:12:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 01:12:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 01:12:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 01:12:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2023-11-29 01:12:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#19 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#20 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#21 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#22 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#23 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#24 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#25 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#26 [2023-11-29 01:12:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#27 [2023-11-29 01:12:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#28 [2023-11-29 01:12:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2023-11-29 01:12:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2023-11-29 01:12:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:12:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:12:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-29 01:12:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-29 01:12:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-29 01:12:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-29 01:12:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-29 01:12:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-29 01:12:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-29 01:12:50,978 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 01:12:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-29 01:12:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#27 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#28 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-29 01:12:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2023-11-29 01:12:50,980 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 01:12:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-29 01:12:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-29 01:12:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-29 01:12:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-29 01:12:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-29 01:12:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-29 01:12:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-29 01:12:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-29 01:12:51,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#27 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#28 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2023-11-29 01:12:51,040 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-29 01:12:51,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-29 01:12:51,040 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-29 01:12:51,040 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-29 01:12:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-29 01:12:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-29 01:12:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-29 01:12:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-29 01:12:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-29 01:12:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2023-11-29 01:12:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2023-11-29 01:12:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-29 01:12:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-29 01:12:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2023-11-29 01:12:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2023-11-29 01:12:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure ql_reset_work [2023-11-29 01:12:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_reset_work [2023-11-29 01:12:51,041 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-29 01:12:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-29 01:12:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2023-11-29 01:12:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2023-11-29 01:12:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2023-11-29 01:12:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2023-11-29 01:12:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-11-29 01:12:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-11-29 01:12:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-29 01:12:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-29 01:12:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2023-11-29 01:12:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2023-11-29 01:12:51,042 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2023-11-29 01:12:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-29 01:12:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2023-11-29 01:12:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 01:12:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-29 01:12:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-29 01:12:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-29 01:12:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-29 01:12:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2023-11-29 01:12:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2023-11-29 01:12:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2023-11-29 01:12:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2023-11-29 01:12:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-29 01:12:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-29 01:12:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2023-11-29 01:12:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2023-11-29 01:12:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-29 01:12:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-29 01:12:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-29 01:12:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-29 01:12:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2023-11-29 01:12:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2023-11-29 01:12:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2023-11-29 01:12:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2023-11-29 01:12:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2023-11-29 01:12:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2023-11-29 01:12:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-29 01:12:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-29 01:12:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-29 01:12:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-29 01:12:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2023-11-29 01:12:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2023-11-29 01:12:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-29 01:12:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-29 01:12:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 01:12:51,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-11-29 01:12:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-11-29 01:12:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2023-11-29 01:12:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2023-11-29 01:12:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2023-11-29 01:12:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2023-11-29 01:12:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2023-11-29 01:12:52,120 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:12:52,125 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:12:57,720 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-29 01:12:59,113 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:12:59,401 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:12:59,402 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 01:12:59,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:12:59 BoogieIcfgContainer [2023-11-29 01:12:59,403 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:12:59,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:12:59,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:12:59,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:12:59,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:12:45" (1/3) ... [2023-11-29 01:12:59,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1ccf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:12:59, skipping insertion in model container [2023-11-29 01:12:59,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:12:48" (2/3) ... [2023-11-29 01:12:59,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1ccf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:12:59, skipping insertion in model container [2023-11-29 01:12:59,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:12:59" (3/3) ... [2023-11-29 01:12:59,410 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--qlogic--qla3xxx.ko-entry_point.cil.out.i [2023-11-29 01:12:59,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:12:59,426 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:12:59,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:12:59,514 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d887452, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:12:59,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:12:59,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 2593 states, 1738 states have (on average 1.4367088607594938) internal successors, (2497), 1792 states have internal predecessors, (2497), 722 states have call successors, (722), 132 states have call predecessors, (722), 131 states have return successors, (712), 701 states have call predecessors, (712), 712 states have call successors, (712) [2023-11-29 01:12:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-29 01:12:59,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:12:59,576 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:12:59,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:12:59,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:12:59,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1307709624, now seen corresponding path program 1 times [2023-11-29 01:12:59,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:12:59,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618819491] [2023-11-29 01:12:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:12:59,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:12:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:00,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:00,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618819491] [2023-11-29 01:13:00,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:00,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788071347] [2023-11-29 01:13:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:00,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:00,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:00,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:00,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:13:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:01,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:13:01,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:01,631 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2023-11-29 01:13:01,632 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:01,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788071347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:01,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:01,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:13:01,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135456630] [2023-11-29 01:13:01,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:01,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:13:01,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:01,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:13:01,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:13:01,679 INFO L87 Difference]: Start difference. First operand has 2593 states, 1738 states have (on average 1.4367088607594938) internal successors, (2497), 1792 states have internal predecessors, (2497), 722 states have call successors, (722), 132 states have call predecessors, (722), 131 states have return successors, (712), 701 states have call predecessors, (712), 712 states have call successors, (712) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 01:13:02,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:02,943 INFO L93 Difference]: Finished difference Result 5183 states and 8103 transitions. [2023-11-29 01:13:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:13:02,946 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 184 [2023-11-29 01:13:02,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:02,982 INFO L225 Difference]: With dead ends: 5183 [2023-11-29 01:13:02,982 INFO L226 Difference]: Without dead ends: 2574 [2023-11-29 01:13:03,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:13:03,009 INFO L413 NwaCegarLoop]: 3676 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:03,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3676 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:13:03,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2023-11-29 01:13:03,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 2574. [2023-11-29 01:13:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 1731 states have (on average 1.4020797227036395) internal successors, (2427), 1773 states have internal predecessors, (2427), 712 states have call successors, (712), 131 states have call predecessors, (712), 130 states have return successors, (711), 700 states have call predecessors, (711), 711 states have call successors, (711) [2023-11-29 01:13:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 3850 transitions. [2023-11-29 01:13:03,214 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 3850 transitions. Word has length 184 [2023-11-29 01:13:03,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:03,214 INFO L495 AbstractCegarLoop]: Abstraction has 2574 states and 3850 transitions. [2023-11-29 01:13:03,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-29 01:13:03,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 3850 transitions. [2023-11-29 01:13:03,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-29 01:13:03,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:03,228 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:03,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:13:03,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:03,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:03,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash -432986044, now seen corresponding path program 1 times [2023-11-29 01:13:03,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:03,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021603739] [2023-11-29 01:13:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:03,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:03,686 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:13:03,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [290117063] [2023-11-29 01:13:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:03,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:03,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:03,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:03,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:13:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:04,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:13:04,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:05,012 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-11-29 01:13:05,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:05,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:05,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021603739] [2023-11-29 01:13:05,012 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:13:05,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290117063] [2023-11-29 01:13:05,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290117063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:05,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:05,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:13:05,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13325155] [2023-11-29 01:13:05,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:05,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:05,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:05,016 INFO L87 Difference]: Start difference. First operand 2574 states and 3850 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-29 01:13:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:06,686 INFO L93 Difference]: Finished difference Result 2578 states and 3854 transitions. [2023-11-29 01:13:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 184 [2023-11-29 01:13:06,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:06,705 INFO L225 Difference]: With dead ends: 2578 [2023-11-29 01:13:06,705 INFO L226 Difference]: Without dead ends: 2575 [2023-11-29 01:13:06,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:06,708 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 0 mSDsluCounter, 3638 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7281 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:06,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7281 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:13:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2023-11-29 01:13:06,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2575. [2023-11-29 01:13:06,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 1732 states have (on average 1.4018475750577368) internal successors, (2428), 1774 states have internal predecessors, (2428), 712 states have call successors, (712), 131 states have call predecessors, (712), 130 states have return successors, (711), 700 states have call predecessors, (711), 711 states have call successors, (711) [2023-11-29 01:13:06,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 3851 transitions. [2023-11-29 01:13:06,864 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 3851 transitions. Word has length 184 [2023-11-29 01:13:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:06,866 INFO L495 AbstractCegarLoop]: Abstraction has 2575 states and 3851 transitions. [2023-11-29 01:13:06,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-29 01:13:06,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 3851 transitions. [2023-11-29 01:13:06,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-29 01:13:06,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:06,875 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:06,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:13:07,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:07,076 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:07,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:07,077 INFO L85 PathProgramCache]: Analyzing trace with hash -57646839, now seen corresponding path program 1 times [2023-11-29 01:13:07,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:07,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29595162] [2023-11-29 01:13:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:07,285 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:13:07,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785498750] [2023-11-29 01:13:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:07,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:07,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:07,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:07,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:13:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:08,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 3455 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:13:08,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2023-11-29 01:13:08,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:08,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:08,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29595162] [2023-11-29 01:13:08,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:13:08,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785498750] [2023-11-29 01:13:08,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785498750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:08,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:08,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:13:08,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672819762] [2023-11-29 01:13:08,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:08,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:08,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:08,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:08,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:08,466 INFO L87 Difference]: Start difference. First operand 2575 states and 3851 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 01:13:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:10,021 INFO L93 Difference]: Finished difference Result 7343 states and 10995 transitions. [2023-11-29 01:13:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 186 [2023-11-29 01:13:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:10,063 INFO L225 Difference]: With dead ends: 7343 [2023-11-29 01:13:10,063 INFO L226 Difference]: Without dead ends: 4792 [2023-11-29 01:13:10,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:10,081 INFO L413 NwaCegarLoop]: 3626 mSDtfsCounter, 3406 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3406 SdHoareTripleChecker+Valid, 7120 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:10,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3406 Valid, 7120 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:13:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2023-11-29 01:13:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4774. [2023-11-29 01:13:10,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 3225 states have (on average 1.4024806201550388) internal successors, (4523), 3307 states have internal predecessors, (4523), 1306 states have call successors, (1306), 243 states have call predecessors, (1306), 242 states have return successors, (1305), 1280 states have call predecessors, (1305), 1305 states have call successors, (1305) [2023-11-29 01:13:10,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 7134 transitions. [2023-11-29 01:13:10,319 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 7134 transitions. Word has length 186 [2023-11-29 01:13:10,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:10,320 INFO L495 AbstractCegarLoop]: Abstraction has 4774 states and 7134 transitions. [2023-11-29 01:13:10,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 01:13:10,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 7134 transitions. [2023-11-29 01:13:10,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-29 01:13:10,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:10,339 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:10,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:13:10,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:10,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:10,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:10,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1843712276, now seen corresponding path program 1 times [2023-11-29 01:13:10,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:10,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980335824] [2023-11-29 01:13:10,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:10,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:10,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:10,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980335824] [2023-11-29 01:13:10,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:10,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058558191] [2023-11-29 01:13:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:10,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:10,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:10,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:10,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:13:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:12,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 4258 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:13:12,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-29 01:13:12,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:12,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058558191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:12,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:12,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:13:12,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033121887] [2023-11-29 01:13:12,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:12,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:12,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:12,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:12,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:12,285 INFO L87 Difference]: Start difference. First operand 4774 states and 7134 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 01:13:13,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:13,722 INFO L93 Difference]: Finished difference Result 9530 states and 14287 transitions. [2023-11-29 01:13:13,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:13,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 301 [2023-11-29 01:13:13,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:13,772 INFO L225 Difference]: With dead ends: 9530 [2023-11-29 01:13:13,772 INFO L226 Difference]: Without dead ends: 4780 [2023-11-29 01:13:13,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:13,811 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 1 mSDsluCounter, 3642 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7285 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:13,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7285 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:13:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4780 states. [2023-11-29 01:13:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4780 to 4776. [2023-11-29 01:13:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4776 states, 3227 states have (on average 1.4022311744654479) internal successors, (4525), 3309 states have internal predecessors, (4525), 1306 states have call successors, (1306), 243 states have call predecessors, (1306), 242 states have return successors, (1305), 1280 states have call predecessors, (1305), 1305 states have call successors, (1305) [2023-11-29 01:13:14,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4776 states to 4776 states and 7136 transitions. [2023-11-29 01:13:14,044 INFO L78 Accepts]: Start accepts. Automaton has 4776 states and 7136 transitions. Word has length 301 [2023-11-29 01:13:14,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:14,045 INFO L495 AbstractCegarLoop]: Abstraction has 4776 states and 7136 transitions. [2023-11-29 01:13:14,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-11-29 01:13:14,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4776 states and 7136 transitions. [2023-11-29 01:13:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-11-29 01:13:14,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:14,065 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:14,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:13:14,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:14,268 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:14,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:14,268 INFO L85 PathProgramCache]: Analyzing trace with hash 276454041, now seen corresponding path program 1 times [2023-11-29 01:13:14,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:14,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216863272] [2023-11-29 01:13:14,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:14,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:14,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:14,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216863272] [2023-11-29 01:13:14,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:14,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657876490] [2023-11-29 01:13:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:14,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:14,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:14,604 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:14,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:13:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:16,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 4601 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:13:16,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 01:13:16,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:16,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657876490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:16,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:16,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:13:16,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8110592] [2023-11-29 01:13:16,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:16,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:16,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:16,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:16,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:16,130 INFO L87 Difference]: Start difference. First operand 4776 states and 7136 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-11-29 01:13:17,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:17,567 INFO L93 Difference]: Finished difference Result 9554 states and 14288 transitions. [2023-11-29 01:13:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:17,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 373 [2023-11-29 01:13:17,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:17,615 INFO L225 Difference]: With dead ends: 9554 [2023-11-29 01:13:17,615 INFO L226 Difference]: Without dead ends: 4802 [2023-11-29 01:13:17,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:17,644 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 10 mSDsluCounter, 3640 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7283 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:17,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7283 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:13:17,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4802 states. [2023-11-29 01:13:17,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4802 to 4778. [2023-11-29 01:13:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4778 states, 3229 states have (on average 1.4019820377825953) internal successors, (4527), 3311 states have internal predecessors, (4527), 1306 states have call successors, (1306), 243 states have call predecessors, (1306), 242 states have return successors, (1305), 1280 states have call predecessors, (1305), 1305 states have call successors, (1305) [2023-11-29 01:13:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4778 states to 4778 states and 7138 transitions. [2023-11-29 01:13:17,865 INFO L78 Accepts]: Start accepts. Automaton has 4778 states and 7138 transitions. Word has length 373 [2023-11-29 01:13:17,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:17,866 INFO L495 AbstractCegarLoop]: Abstraction has 4778 states and 7138 transitions. [2023-11-29 01:13:17,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-11-29 01:13:17,867 INFO L276 IsEmpty]: Start isEmpty. Operand 4778 states and 7138 transitions. [2023-11-29 01:13:17,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-11-29 01:13:17,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:17,884 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:17,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:13:18,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:18,085 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:18,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash 271716739, now seen corresponding path program 1 times [2023-11-29 01:13:18,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:18,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528133412] [2023-11-29 01:13:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:18,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:18,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528133412] [2023-11-29 01:13:18,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:18,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689040889] [2023-11-29 01:13:18,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:18,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:18,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:18,348 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:18,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:13:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:19,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 4295 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:13:19,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-29 01:13:19,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:19,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689040889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:19,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:19,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:13:19,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215483249] [2023-11-29 01:13:19,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:19,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:13:19,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:19,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:13:19,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:19,849 INFO L87 Difference]: Start difference. First operand 4778 states and 7138 transitions. Second operand has 6 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 5 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 4 states have call predecessors, (43), 5 states have call successors, (43) [2023-11-29 01:13:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:22,772 INFO L93 Difference]: Finished difference Result 9624 states and 14412 transitions. [2023-11-29 01:13:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:13:22,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 5 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 4 states have call predecessors, (43), 5 states have call successors, (43) Word has length 306 [2023-11-29 01:13:22,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:22,810 INFO L225 Difference]: With dead ends: 9624 [2023-11-29 01:13:22,810 INFO L226 Difference]: Without dead ends: 4870 [2023-11-29 01:13:22,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:13:22,832 INFO L413 NwaCegarLoop]: 3670 mSDtfsCounter, 120 mSDsluCounter, 14475 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 18145 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:22,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 18145 Invalid, 1140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [33 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 01:13:22,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2023-11-29 01:13:22,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 4870. [2023-11-29 01:13:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4870 states, 3281 states have (on average 1.3986589454434624) internal successors, (4589), 3363 states have internal predecessors, (4589), 1342 states have call successors, (1342), 245 states have call predecessors, (1342), 246 states have return successors, (1343), 1316 states have call predecessors, (1343), 1341 states have call successors, (1343) [2023-11-29 01:13:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4870 states to 4870 states and 7274 transitions. [2023-11-29 01:13:22,995 INFO L78 Accepts]: Start accepts. Automaton has 4870 states and 7274 transitions. Word has length 306 [2023-11-29 01:13:22,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:22,996 INFO L495 AbstractCegarLoop]: Abstraction has 4870 states and 7274 transitions. [2023-11-29 01:13:22,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 5 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (43), 4 states have call predecessors, (43), 5 states have call successors, (43) [2023-11-29 01:13:22,996 INFO L276 IsEmpty]: Start isEmpty. Operand 4870 states and 7274 transitions. [2023-11-29 01:13:23,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-11-29 01:13:23,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:23,010 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:23,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:13:23,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:23,211 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:23,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:23,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1912773117, now seen corresponding path program 1 times [2023-11-29 01:13:23,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:23,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319285730] [2023-11-29 01:13:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:23,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:23,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:23,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319285730] [2023-11-29 01:13:23,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:23,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685637418] [2023-11-29 01:13:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:23,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:23,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:23,485 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:23,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:13:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:24,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 4614 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:13:24,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 01:13:24,937 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:25,216 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-29 01:13:25,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685637418] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:13:25,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:13:25,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 01:13:25,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837592244] [2023-11-29 01:13:25,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:13:25,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:13:25,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:25,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:13:25,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:25,219 INFO L87 Difference]: Start difference. First operand 4870 states and 7274 transitions. Second operand has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:13:26,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:26,768 INFO L93 Difference]: Finished difference Result 9794 states and 14644 transitions. [2023-11-29 01:13:26,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:13:26,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 376 [2023-11-29 01:13:26,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:26,796 INFO L225 Difference]: With dead ends: 9794 [2023-11-29 01:13:26,796 INFO L226 Difference]: Without dead ends: 4948 [2023-11-29 01:13:26,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 746 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:26,811 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 64 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 7295 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:26,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 7295 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:13:26,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4948 states. [2023-11-29 01:13:26,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4948 to 4948. [2023-11-29 01:13:26,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4948 states, 3335 states have (on average 1.3958020989505247) internal successors, (4655), 3417 states have internal predecessors, (4655), 1366 states have call successors, (1366), 245 states have call predecessors, (1366), 246 states have return successors, (1367), 1340 states have call predecessors, (1367), 1365 states have call successors, (1367) [2023-11-29 01:13:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 4948 states and 7388 transitions. [2023-11-29 01:13:26,957 INFO L78 Accepts]: Start accepts. Automaton has 4948 states and 7388 transitions. Word has length 376 [2023-11-29 01:13:26,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:26,958 INFO L495 AbstractCegarLoop]: Abstraction has 4948 states and 7388 transitions. [2023-11-29 01:13:26,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:13:26,958 INFO L276 IsEmpty]: Start isEmpty. Operand 4948 states and 7388 transitions. [2023-11-29 01:13:26,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2023-11-29 01:13:26,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:26,974 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:26,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:13:27,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:27,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:27,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:27,176 INFO L85 PathProgramCache]: Analyzing trace with hash 761345748, now seen corresponding path program 1 times [2023-11-29 01:13:27,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:27,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580582987] [2023-11-29 01:13:27,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:27,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:27,422 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:13:27,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1714151559] [2023-11-29 01:13:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:27,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:27,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:27,424 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:27,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:13:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:28,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 4651 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:13:28,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:28,935 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 01:13:28,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-29 01:13:29,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:29,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580582987] [2023-11-29 01:13:29,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:13:29,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714151559] [2023-11-29 01:13:29,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714151559] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:13:29,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:13:29,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 01:13:29,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440317149] [2023-11-29 01:13:29,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:13:29,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:13:29,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:29,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:13:29,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:13:29,241 INFO L87 Difference]: Start difference. First operand 4948 states and 7388 transitions. Second operand has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:13:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:30,620 INFO L93 Difference]: Finished difference Result 10028 states and 14992 transitions. [2023-11-29 01:13:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:13:30,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 384 [2023-11-29 01:13:30,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:30,641 INFO L225 Difference]: With dead ends: 10028 [2023-11-29 01:13:30,641 INFO L226 Difference]: Without dead ends: 5104 [2023-11-29 01:13:30,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 766 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:13:30,657 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 159 mSDsluCounter, 3725 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 7368 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:30,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 7368 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:13:30,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5104 states. [2023-11-29 01:13:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5104 to 5104. [2023-11-29 01:13:30,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 3443 states have (on average 1.3903572465872784) internal successors, (4787), 3525 states have internal predecessors, (4787), 1414 states have call successors, (1414), 245 states have call predecessors, (1414), 246 states have return successors, (1415), 1388 states have call predecessors, (1415), 1413 states have call successors, (1415) [2023-11-29 01:13:30,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 7616 transitions. [2023-11-29 01:13:30,810 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 7616 transitions. Word has length 384 [2023-11-29 01:13:30,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:30,811 INFO L495 AbstractCegarLoop]: Abstraction has 5104 states and 7616 transitions. [2023-11-29 01:13:30,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:13:30,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 7616 transitions. [2023-11-29 01:13:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-11-29 01:13:30,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:30,825 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:30,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 01:13:31,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:31,027 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:31,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:31,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1396537831, now seen corresponding path program 2 times [2023-11-29 01:13:31,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:31,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444415473] [2023-11-29 01:13:31,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:31,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:31,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:31,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444415473] [2023-11-29 01:13:31,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:31,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033571863] [2023-11-29 01:13:31,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:13:31,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:31,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:31,337 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:31,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:13:32,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:13:32,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:13:32,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 2746 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:13:32,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 01:13:32,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:32,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033571863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:32,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:32,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:13:32,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715190420] [2023-11-29 01:13:32,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:32,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:13:32,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:32,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:13:32,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:13:32,614 INFO L87 Difference]: Start difference. First operand 5104 states and 7616 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-11-29 01:13:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:34,798 INFO L93 Difference]: Finished difference Result 10810 states and 16233 transitions. [2023-11-29 01:13:34,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:13:34,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 403 [2023-11-29 01:13:34,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:34,820 INFO L225 Difference]: With dead ends: 10810 [2023-11-29 01:13:34,820 INFO L226 Difference]: Without dead ends: 5730 [2023-11-29 01:13:34,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:13:34,835 INFO L413 NwaCegarLoop]: 4125 mSDtfsCounter, 269 mSDsluCounter, 7872 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 11997 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:34,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 11997 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 01:13:34,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2023-11-29 01:13:35,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 5108. [2023-11-29 01:13:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5108 states, 3447 states have (on average 1.3899042645778938) internal successors, (4791), 3529 states have internal predecessors, (4791), 1414 states have call successors, (1414), 245 states have call predecessors, (1414), 246 states have return successors, (1415), 1388 states have call predecessors, (1415), 1413 states have call successors, (1415) [2023-11-29 01:13:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 7620 transitions. [2023-11-29 01:13:35,079 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 7620 transitions. Word has length 403 [2023-11-29 01:13:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:35,080 INFO L495 AbstractCegarLoop]: Abstraction has 5108 states and 7620 transitions. [2023-11-29 01:13:35,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-11-29 01:13:35,080 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 7620 transitions. [2023-11-29 01:13:35,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-11-29 01:13:35,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:35,102 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:35,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:13:35,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:35,302 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:35,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:35,303 INFO L85 PathProgramCache]: Analyzing trace with hash 655369603, now seen corresponding path program 1 times [2023-11-29 01:13:35,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:35,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924938901] [2023-11-29 01:13:35,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:35,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:35,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:35,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924938901] [2023-11-29 01:13:35,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:35,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776725649] [2023-11-29 01:13:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:35,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:35,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:35,581 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:35,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:13:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:37,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 4509 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:13:37,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-11-29 01:13:37,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:37,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776725649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:37,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:37,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:13:37,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823231240] [2023-11-29 01:13:37,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:37,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:13:37,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:37,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:13:37,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:13:37,116 INFO L87 Difference]: Start difference. First operand 5108 states and 7620 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2023-11-29 01:13:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:39,335 INFO L93 Difference]: Finished difference Result 10332 states and 15473 transitions. [2023-11-29 01:13:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:13:39,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) Word has length 346 [2023-11-29 01:13:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:39,368 INFO L225 Difference]: With dead ends: 10332 [2023-11-29 01:13:39,368 INFO L226 Difference]: Without dead ends: 5248 [2023-11-29 01:13:39,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:13:39,388 INFO L413 NwaCegarLoop]: 3676 mSDtfsCounter, 55 mSDsluCounter, 11001 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 14677 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:39,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 14677 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 01:13:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2023-11-29 01:13:39,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 5116. [2023-11-29 01:13:39,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5116 states, 3453 states have (on average 1.3892267593397045) internal successors, (4797), 3535 states have internal predecessors, (4797), 1414 states have call successors, (1414), 245 states have call predecessors, (1414), 248 states have return successors, (1419), 1390 states have call predecessors, (1419), 1413 states have call successors, (1419) [2023-11-29 01:13:39,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5116 states to 5116 states and 7630 transitions. [2023-11-29 01:13:39,608 INFO L78 Accepts]: Start accepts. Automaton has 5116 states and 7630 transitions. Word has length 346 [2023-11-29 01:13:39,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:39,609 INFO L495 AbstractCegarLoop]: Abstraction has 5116 states and 7630 transitions. [2023-11-29 01:13:39,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2023-11-29 01:13:39,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5116 states and 7630 transitions. [2023-11-29 01:13:39,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2023-11-29 01:13:39,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:39,627 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:39,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:13:39,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:13:39,828 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:39,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:39,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1225769458, now seen corresponding path program 1 times [2023-11-29 01:13:39,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:39,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871866268] [2023-11-29 01:13:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:39,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:40,042 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:13:40,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487086393] [2023-11-29 01:13:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:40,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:40,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:40,044 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:40,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:13:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:41,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 4753 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:13:41,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 22 proven. 145 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-11-29 01:13:41,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-29 01:13:42,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:42,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871866268] [2023-11-29 01:13:42,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:13:42,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487086393] [2023-11-29 01:13:42,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487086393] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:13:42,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:13:42,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-29 01:13:42,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257904696] [2023-11-29 01:13:42,158 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:13:42,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 01:13:42,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:42,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 01:13:42,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:13:42,161 INFO L87 Difference]: Start difference. First operand 5116 states and 7630 transitions. Second operand has 24 states, 24 states have (on average 11.875) internal successors, (285), 24 states have internal predecessors, (285), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:13:44,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:44,114 INFO L93 Difference]: Finished difference Result 10520 states and 15716 transitions. [2023-11-29 01:13:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 01:13:44,114 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 11.875) internal successors, (285), 24 states have internal predecessors, (285), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 401 [2023-11-29 01:13:44,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:44,137 INFO L225 Difference]: With dead ends: 10520 [2023-11-29 01:13:44,137 INFO L226 Difference]: Without dead ends: 5428 [2023-11-29 01:13:44,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 778 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:13:44,153 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 305 mSDsluCounter, 7478 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 11121 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:44,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 11121 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:13:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5428 states. [2023-11-29 01:13:44,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5428 to 5428. [2023-11-29 01:13:44,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 3669 states have (on average 1.3793949304987736) internal successors, (5061), 3751 states have internal predecessors, (5061), 1510 states have call successors, (1510), 245 states have call predecessors, (1510), 248 states have return successors, (1515), 1486 states have call predecessors, (1515), 1509 states have call successors, (1515) [2023-11-29 01:13:44,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 8086 transitions. [2023-11-29 01:13:44,315 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 8086 transitions. Word has length 401 [2023-11-29 01:13:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:44,316 INFO L495 AbstractCegarLoop]: Abstraction has 5428 states and 8086 transitions. [2023-11-29 01:13:44,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.875) internal successors, (285), 24 states have internal predecessors, (285), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:13:44,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 8086 transitions. [2023-11-29 01:13:44,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-11-29 01:13:44,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:44,330 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:44,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:13:44,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:13:44,531 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:44,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:44,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2026175187, now seen corresponding path program 1 times [2023-11-29 01:13:44,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:44,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272432814] [2023-11-29 01:13:44,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:44,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:44,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:44,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272432814] [2023-11-29 01:13:44,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:44,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372075141] [2023-11-29 01:13:44,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:44,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:44,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:44,776 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:44,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:13:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:46,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 4520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:13:46,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-29 01:13:46,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:46,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372075141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:46,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:46,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:13:46,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233738282] [2023-11-29 01:13:46,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:46,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:13:46,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:13:46,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:13:46,284 INFO L87 Difference]: Start difference. First operand 5428 states and 8086 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 3 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2023-11-29 01:13:47,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:47,886 INFO L93 Difference]: Finished difference Result 10914 states and 16313 transitions. [2023-11-29 01:13:47,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:13:47,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 3 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 355 [2023-11-29 01:13:47,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:47,910 INFO L225 Difference]: With dead ends: 10914 [2023-11-29 01:13:47,910 INFO L226 Difference]: Without dead ends: 5510 [2023-11-29 01:13:47,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:13:47,925 INFO L413 NwaCegarLoop]: 3642 mSDtfsCounter, 43 mSDsluCounter, 3659 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 7301 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:47,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 7301 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:13:47,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5510 states. [2023-11-29 01:13:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5510 to 5462. [2023-11-29 01:13:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 3697 states have (on average 1.3797673789559102) internal successors, (5101), 3779 states have internal predecessors, (5101), 1516 states have call successors, (1516), 245 states have call predecessors, (1516), 248 states have return successors, (1521), 1492 states have call predecessors, (1521), 1515 states have call successors, (1521) [2023-11-29 01:13:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 8138 transitions. [2023-11-29 01:13:48,089 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 8138 transitions. Word has length 355 [2023-11-29 01:13:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:48,090 INFO L495 AbstractCegarLoop]: Abstraction has 5462 states and 8138 transitions. [2023-11-29 01:13:48,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 3 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2023-11-29 01:13:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 8138 transitions. [2023-11-29 01:13:48,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2023-11-29 01:13:48,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:48,102 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:48,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:13:48,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:13:48,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:48,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:48,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1561700449, now seen corresponding path program 1 times [2023-11-29 01:13:48,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:48,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060888589] [2023-11-29 01:13:48,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:48,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:48,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:48,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060888589] [2023-11-29 01:13:48,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:48,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267834721] [2023-11-29 01:13:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:48,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:48,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:48,506 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:48,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:13:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:49,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 4609 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:13:49,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-29 01:13:49,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-29 01:13:50,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267834721] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:13:50,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:13:50,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:13:50,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654451912] [2023-11-29 01:13:50,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:13:50,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:13:50,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:50,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:13:50,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:13:50,224 INFO L87 Difference]: Start difference. First operand 5462 states and 8138 transitions. Second operand has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 6 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (81), 6 states have call predecessors, (81), 6 states have call successors, (81) [2023-11-29 01:13:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:52,187 INFO L93 Difference]: Finished difference Result 11076 states and 16565 transitions. [2023-11-29 01:13:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:13:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 6 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (81), 6 states have call predecessors, (81), 6 states have call successors, (81) Word has length 379 [2023-11-29 01:13:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:52,211 INFO L225 Difference]: With dead ends: 11076 [2023-11-29 01:13:52,212 INFO L226 Difference]: Without dead ends: 5638 [2023-11-29 01:13:52,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:13:52,231 INFO L413 NwaCegarLoop]: 3642 mSDtfsCounter, 165 mSDsluCounter, 7330 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 10972 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:52,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 10972 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:13:52,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2023-11-29 01:13:52,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 5598. [2023-11-29 01:13:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5598 states, 3809 states have (on average 1.381202415332108) internal successors, (5261), 3891 states have internal predecessors, (5261), 1540 states have call successors, (1540), 245 states have call predecessors, (1540), 248 states have return successors, (1545), 1516 states have call predecessors, (1545), 1539 states have call successors, (1545) [2023-11-29 01:13:52,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5598 states to 5598 states and 8346 transitions. [2023-11-29 01:13:52,463 INFO L78 Accepts]: Start accepts. Automaton has 5598 states and 8346 transitions. Word has length 379 [2023-11-29 01:13:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:52,464 INFO L495 AbstractCegarLoop]: Abstraction has 5598 states and 8346 transitions. [2023-11-29 01:13:52,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.25) internal successors, (218), 8 states have internal predecessors, (218), 6 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (81), 6 states have call predecessors, (81), 6 states have call successors, (81) [2023-11-29 01:13:52,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5598 states and 8346 transitions. [2023-11-29 01:13:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2023-11-29 01:13:52,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:52,480 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:52,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 01:13:52,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:13:52,680 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:52,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:52,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1119861074, now seen corresponding path program 1 times [2023-11-29 01:13:52,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:52,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328331238] [2023-11-29 01:13:52,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:52,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:53,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:53,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328331238] [2023-11-29 01:13:53,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:53,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806000202] [2023-11-29 01:13:53,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:53,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:53,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:53,010 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:53,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:13:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:54,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 5428 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:13:54,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:54,723 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2023-11-29 01:13:54,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:54,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806000202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:54,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:54,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:13:54,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804613765] [2023-11-29 01:13:54,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:54,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:13:54,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:54,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:13:54,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:54,726 INFO L87 Difference]: Start difference. First operand 5598 states and 8346 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 3 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2023-11-29 01:13:55,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:55,887 INFO L93 Difference]: Finished difference Result 11222 states and 16782 transitions. [2023-11-29 01:13:55,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:13:55,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 3 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 537 [2023-11-29 01:13:55,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:55,907 INFO L225 Difference]: With dead ends: 11222 [2023-11-29 01:13:55,908 INFO L226 Difference]: Without dead ends: 5648 [2023-11-29 01:13:55,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 535 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:13:55,923 INFO L413 NwaCegarLoop]: 3640 mSDtfsCounter, 14 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7271 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:55,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 7271 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:13:55,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5648 states. [2023-11-29 01:13:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5648 to 5634. [2023-11-29 01:13:56,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5634 states, 3835 states have (on average 1.3822685788787483) internal successors, (5301), 3919 states have internal predecessors, (5301), 1550 states have call successors, (1550), 245 states have call predecessors, (1550), 248 states have return successors, (1555), 1526 states have call predecessors, (1555), 1549 states have call successors, (1555) [2023-11-29 01:13:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 8406 transitions. [2023-11-29 01:13:56,173 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 8406 transitions. Word has length 537 [2023-11-29 01:13:56,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:56,175 INFO L495 AbstractCegarLoop]: Abstraction has 5634 states and 8406 transitions. [2023-11-29 01:13:56,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 3 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2023-11-29 01:13:56,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 8406 transitions. [2023-11-29 01:13:56,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-11-29 01:13:56,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:56,189 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:56,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 01:13:56,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:13:56,389 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:56,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:56,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1422341637, now seen corresponding path program 1 times [2023-11-29 01:13:56,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:56,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431812528] [2023-11-29 01:13:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:56,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:56,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:56,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431812528] [2023-11-29 01:13:56,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:13:56,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670629023] [2023-11-29 01:13:56,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:56,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:56,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:56,651 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:56,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:13:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:58,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 4808 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:13:58,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2023-11-29 01:13:58,200 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:58,437 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-29 01:13:58,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670629023] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:13:58,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:13:58,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 01:13:58,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149604924] [2023-11-29 01:13:58,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:13:58,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:13:58,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:58,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:13:58,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:58,440 INFO L87 Difference]: Start difference. First operand 5634 states and 8406 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 4 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2023-11-29 01:13:59,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:59,531 INFO L93 Difference]: Finished difference Result 11262 states and 16859 transitions. [2023-11-29 01:13:59,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:13:59,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 4 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) Word has length 402 [2023-11-29 01:13:59,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:59,551 INFO L225 Difference]: With dead ends: 11262 [2023-11-29 01:13:59,551 INFO L226 Difference]: Without dead ends: 5652 [2023-11-29 01:13:59,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:13:59,566 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 2 mSDsluCounter, 3641 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7284 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:59,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7284 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:13:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5652 states. [2023-11-29 01:13:59,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5652 to 5652. [2023-11-29 01:13:59,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5652 states, 3847 states have (on average 1.3810761632440862) internal successors, (5313), 3931 states have internal predecessors, (5313), 1556 states have call successors, (1556), 245 states have call predecessors, (1556), 248 states have return successors, (1561), 1532 states have call predecessors, (1561), 1555 states have call successors, (1561) [2023-11-29 01:13:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5652 states to 5652 states and 8430 transitions. [2023-11-29 01:13:59,709 INFO L78 Accepts]: Start accepts. Automaton has 5652 states and 8430 transitions. Word has length 402 [2023-11-29 01:13:59,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:59,710 INFO L495 AbstractCegarLoop]: Abstraction has 5652 states and 8430 transitions. [2023-11-29 01:13:59,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 6 states have internal predecessors, (194), 4 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2023-11-29 01:13:59,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5652 states and 8430 transitions. [2023-11-29 01:13:59,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2023-11-29 01:13:59,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:59,719 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:59,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 01:13:59,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:13:59,919 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:13:59,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:59,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2957941, now seen corresponding path program 1 times [2023-11-29 01:13:59,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:59,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478464684] [2023-11-29 01:13:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:59,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:00,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:00,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478464684] [2023-11-29 01:14:00,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:14:00,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316051526] [2023-11-29 01:14:00,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:00,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:00,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:00,209 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:00,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:14:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:01,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 5026 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:14:01,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 22 proven. 715 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2023-11-29 01:14:02,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:14:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-29 01:14:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316051526] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:14:02,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:14:02,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2023-11-29 01:14:02,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174721741] [2023-11-29 01:14:02,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:14:02,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-29 01:14:02,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:02,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-29 01:14:02,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 01:14:02,925 INFO L87 Difference]: Start difference. First operand 5652 states and 8430 transitions. Second operand has 48 states, 48 states have (on average 7.5) internal successors, (360), 48 states have internal predecessors, (360), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:14:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:07,544 INFO L93 Difference]: Finished difference Result 11904 states and 17796 transitions. [2023-11-29 01:14:07,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 01:14:07,545 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 7.5) internal successors, (360), 48 states have internal predecessors, (360), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 455 [2023-11-29 01:14:07,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:07,564 INFO L225 Difference]: With dead ends: 11904 [2023-11-29 01:14:07,564 INFO L226 Difference]: Without dead ends: 6276 [2023-11-29 01:14:07,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 908 GetRequests, 862 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 01:14:07,580 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 682 mSDsluCounter, 18654 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 22297 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:07,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 22297 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 01:14:07,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6276 states. [2023-11-29 01:14:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6276 to 6276. [2023-11-29 01:14:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6276 states, 4279 states have (on average 1.365038560411311) internal successors, (5841), 4363 states have internal predecessors, (5841), 1748 states have call successors, (1748), 245 states have call predecessors, (1748), 248 states have return successors, (1753), 1724 states have call predecessors, (1753), 1747 states have call successors, (1753) [2023-11-29 01:14:07,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6276 states to 6276 states and 9342 transitions. [2023-11-29 01:14:07,758 INFO L78 Accepts]: Start accepts. Automaton has 6276 states and 9342 transitions. Word has length 455 [2023-11-29 01:14:07,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:07,759 INFO L495 AbstractCegarLoop]: Abstraction has 6276 states and 9342 transitions. [2023-11-29 01:14:07,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 7.5) internal successors, (360), 48 states have internal predecessors, (360), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:14:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 6276 states and 9342 transitions. [2023-11-29 01:14:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2023-11-29 01:14:07,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:07,771 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:07,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:14:07,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 01:14:07,972 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:07,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:07,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1159935198, now seen corresponding path program 2 times [2023-11-29 01:14:07,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:07,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117054864] [2023-11-29 01:14:07,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:07,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:08,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:08,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117054864] [2023-11-29 01:14:08,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:14:08,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222329053] [2023-11-29 01:14:08,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:14:08,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:08,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:08,232 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:08,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:14:09,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:14:09,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:14:09,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:14:09,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-11-29 01:14:09,493 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:14:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222329053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:14:09,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:14:09,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:14:09,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993404757] [2023-11-29 01:14:09,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:14:09,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:14:09,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:09,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:14:09,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:14:09,495 INFO L87 Difference]: Start difference. First operand 6276 states and 9342 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2023-11-29 01:14:11,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:11,496 INFO L93 Difference]: Finished difference Result 18774 states and 27978 transitions. [2023-11-29 01:14:11,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:14:11,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 417 [2023-11-29 01:14:11,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:11,540 INFO L225 Difference]: With dead ends: 18774 [2023-11-29 01:14:11,540 INFO L226 Difference]: Without dead ends: 12522 [2023-11-29 01:14:11,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:14:11,559 INFO L413 NwaCegarLoop]: 3650 mSDtfsCounter, 3833 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3833 SdHoareTripleChecker+Valid, 7261 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:11,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3833 Valid, 7261 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:14:11,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12522 states. [2023-11-29 01:14:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12522 to 12519. [2023-11-29 01:14:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12519 states, 8541 states have (on average 1.3651797213441048) internal successors, (11660), 8709 states have internal predecessors, (11660), 3483 states have call successors, (3483), 487 states have call predecessors, (3483), 494 states have return successors, (3512), 3436 states have call predecessors, (3512), 3482 states have call successors, (3512) [2023-11-29 01:14:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12519 states to 12519 states and 18655 transitions. [2023-11-29 01:14:11,967 INFO L78 Accepts]: Start accepts. Automaton has 12519 states and 18655 transitions. Word has length 417 [2023-11-29 01:14:11,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:11,967 INFO L495 AbstractCegarLoop]: Abstraction has 12519 states and 18655 transitions. [2023-11-29 01:14:11,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2023-11-29 01:14:11,967 INFO L276 IsEmpty]: Start isEmpty. Operand 12519 states and 18655 transitions. [2023-11-29 01:14:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-11-29 01:14:11,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:11,987 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:12,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 01:14:12,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:14:12,188 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:12,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:12,188 INFO L85 PathProgramCache]: Analyzing trace with hash 757353758, now seen corresponding path program 1 times [2023-11-29 01:14:12,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:12,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392565719] [2023-11-29 01:14:12,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:12,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:12,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:12,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392565719] [2023-11-29 01:14:12,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:14:12,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543062584] [2023-11-29 01:14:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:12,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:12,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:12,397 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:12,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:14:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:13,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 4921 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:14:13,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 8 proven. 22 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2023-11-29 01:14:14,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:14:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2023-11-29 01:14:14,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543062584] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:14:14,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:14:14,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 01:14:14,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757700] [2023-11-29 01:14:14,359 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:14:14,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:14:14,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:14,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:14:14,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:14:14,361 INFO L87 Difference]: Start difference. First operand 12519 states and 18655 transitions. Second operand has 12 states, 12 states have (on average 17.25) internal successors, (207), 12 states have internal predecessors, (207), 10 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (83), 10 states have call predecessors, (83), 10 states have call successors, (83) [2023-11-29 01:14:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:17,487 INFO L93 Difference]: Finished difference Result 25086 states and 37493 transitions. [2023-11-29 01:14:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:14:17,488 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.25) internal successors, (207), 12 states have internal predecessors, (207), 10 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (83), 10 states have call predecessors, (83), 10 states have call successors, (83) Word has length 418 [2023-11-29 01:14:17,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:17,553 INFO L225 Difference]: With dead ends: 25086 [2023-11-29 01:14:17,553 INFO L226 Difference]: Without dead ends: 12591 [2023-11-29 01:14:17,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 824 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:14:17,601 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 2 mSDsluCounter, 18205 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 21848 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:17,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 21848 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 01:14:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12591 states. [2023-11-29 01:14:17,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12591 to 12591. [2023-11-29 01:14:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12591 states, 8589 states have (on average 1.3631388985912214) internal successors, (11708), 8757 states have internal predecessors, (11708), 3507 states have call successors, (3507), 487 states have call predecessors, (3507), 494 states have return successors, (3536), 3460 states have call predecessors, (3536), 3506 states have call successors, (3536) [2023-11-29 01:14:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12591 states to 12591 states and 18751 transitions. [2023-11-29 01:14:17,995 INFO L78 Accepts]: Start accepts. Automaton has 12591 states and 18751 transitions. Word has length 418 [2023-11-29 01:14:17,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:17,996 INFO L495 AbstractCegarLoop]: Abstraction has 12591 states and 18751 transitions. [2023-11-29 01:14:17,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.25) internal successors, (207), 12 states have internal predecessors, (207), 10 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (83), 10 states have call predecessors, (83), 10 states have call successors, (83) [2023-11-29 01:14:17,996 INFO L276 IsEmpty]: Start isEmpty. Operand 12591 states and 18751 transitions. [2023-11-29 01:14:18,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2023-11-29 01:14:18,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:18,016 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:18,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 01:14:18,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:14:18,217 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:18,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:18,217 INFO L85 PathProgramCache]: Analyzing trace with hash -936960578, now seen corresponding path program 2 times [2023-11-29 01:14:18,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:18,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343293830] [2023-11-29 01:14:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:18,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:18,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343293830] [2023-11-29 01:14:18,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:14:18,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25198074] [2023-11-29 01:14:18,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:14:18,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:18,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:18,546 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:18,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:14:19,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:14:19,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:14:19,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:14:19,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2023-11-29 01:14:19,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:14:19,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25198074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:14:19,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:14:19,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:14:19,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4215107] [2023-11-29 01:14:19,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:14:19,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:14:19,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:19,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:14:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:14:19,981 INFO L87 Difference]: Start difference. First operand 12591 states and 18751 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2023-11-29 01:14:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:21,742 INFO L93 Difference]: Finished difference Result 37713 states and 56221 transitions. [2023-11-29 01:14:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:14:21,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 448 [2023-11-29 01:14:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:21,841 INFO L225 Difference]: With dead ends: 37713 [2023-11-29 01:14:21,841 INFO L226 Difference]: Without dead ends: 25146 [2023-11-29 01:14:21,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:14:21,954 INFO L413 NwaCegarLoop]: 3647 mSDtfsCounter, 3832 mSDsluCounter, 3613 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3832 SdHoareTripleChecker+Valid, 7260 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:21,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3832 Valid, 7260 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:14:21,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25146 states. [2023-11-29 01:14:22,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25146 to 25143. [2023-11-29 01:14:22,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25143 states, 17158 states have (on average 1.3630376500757664) internal successors, (23387), 17494 states have internal predecessors, (23387), 6998 states have call successors, (6998), 971 states have call predecessors, (6998), 986 states have return successors, (7093), 6905 states have call predecessors, (7093), 6997 states have call successors, (7093) [2023-11-29 01:14:22,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25143 states to 25143 states and 37478 transitions. [2023-11-29 01:14:22,714 INFO L78 Accepts]: Start accepts. Automaton has 25143 states and 37478 transitions. Word has length 448 [2023-11-29 01:14:22,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:22,714 INFO L495 AbstractCegarLoop]: Abstraction has 25143 states and 37478 transitions. [2023-11-29 01:14:22,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2023-11-29 01:14:22,714 INFO L276 IsEmpty]: Start isEmpty. Operand 25143 states and 37478 transitions. [2023-11-29 01:14:22,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-11-29 01:14:22,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:22,755 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:22,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:14:22,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:22,956 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:22,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:22,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1545573429, now seen corresponding path program 1 times [2023-11-29 01:14:22,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:22,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687785918] [2023-11-29 01:14:22,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:22,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:23,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:23,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687785918] [2023-11-29 01:14:23,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:14:23,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561334549] [2023-11-29 01:14:23,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:23,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:23,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:23,244 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:23,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:14:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:24,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 5145 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:14:24,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 8 proven. 145 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-11-29 01:14:24,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:14:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 530 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2023-11-29 01:14:25,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561334549] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:14:25,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:14:25,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-11-29 01:14:25,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961218009] [2023-11-29 01:14:25,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:14:25,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 01:14:25,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 01:14:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:14:25,448 INFO L87 Difference]: Start difference. First operand 25143 states and 37478 transitions. Second operand has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 22 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (95), 22 states have call predecessors, (95), 22 states have call successors, (95) [2023-11-29 01:14:27,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:27,778 INFO L93 Difference]: Finished difference Result 50550 states and 75588 transitions. [2023-11-29 01:14:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 01:14:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 22 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (95), 22 states have call predecessors, (95), 22 states have call successors, (95) Word has length 449 [2023-11-29 01:14:27,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:27,871 INFO L225 Difference]: With dead ends: 50550 [2023-11-29 01:14:27,871 INFO L226 Difference]: Without dead ends: 25431 [2023-11-29 01:14:27,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 874 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:14:27,951 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 2 mSDsluCounter, 3641 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7284 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:27,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7284 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:14:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25431 states. [2023-11-29 01:14:28,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25431 to 25431. [2023-11-29 01:14:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25431 states, 17350 states have (on average 1.3590201729106628) internal successors, (23579), 17686 states have internal predecessors, (23579), 7094 states have call successors, (7094), 971 states have call predecessors, (7094), 986 states have return successors, (7189), 7001 states have call predecessors, (7189), 7093 states have call successors, (7189) [2023-11-29 01:14:28,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25431 states to 25431 states and 37862 transitions. [2023-11-29 01:14:28,911 INFO L78 Accepts]: Start accepts. Automaton has 25431 states and 37862 transitions. Word has length 449 [2023-11-29 01:14:28,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:28,911 INFO L495 AbstractCegarLoop]: Abstraction has 25431 states and 37862 transitions. [2023-11-29 01:14:28,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.666666666666666) internal successors, (232), 24 states have internal predecessors, (232), 22 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (95), 22 states have call predecessors, (95), 22 states have call successors, (95) [2023-11-29 01:14:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 25431 states and 37862 transitions. [2023-11-29 01:14:28,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2023-11-29 01:14:28,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:28,962 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 22, 22, 22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:28,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 01:14:29,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:29,162 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:29,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:29,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1158513470, now seen corresponding path program 1 times [2023-11-29 01:14:29,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:29,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862534250] [2023-11-29 01:14:29,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:29,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:29,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:29,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862534250] [2023-11-29 01:14:29,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:14:29,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220453682] [2023-11-29 01:14:29,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:29,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:29,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:29,431 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:29,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:14:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:31,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 6000 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 01:14:31,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4615 backedges. 22 proven. 3151 refuted. 0 times theorem prover too weak. 1442 trivial. 0 not checked. [2023-11-29 01:14:32,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:14:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 4615 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 1464 trivial. 0 not checked. [2023-11-29 01:14:35,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220453682] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:14:35,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:14:35,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 96 [2023-11-29 01:14:35,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012163074] [2023-11-29 01:14:35,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:14:35,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-11-29 01:14:35,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:35,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-11-29 01:14:35,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 01:14:35,146 INFO L87 Difference]: Start difference. First operand 25431 states and 37862 transitions. Second operand has 96 states, 96 states have (on average 5.229166666666667) internal successors, (502), 96 states have internal predecessors, (502), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:14:43,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:43,329 INFO L93 Difference]: Finished difference Result 55830 states and 83404 transitions. [2023-11-29 01:14:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-11-29 01:14:43,330 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.229166666666667) internal successors, (502), 96 states have internal predecessors, (502), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 615 [2023-11-29 01:14:43,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:43,432 INFO L225 Difference]: With dead ends: 55830 [2023-11-29 01:14:43,432 INFO L226 Difference]: Without dead ends: 30423 [2023-11-29 01:14:43,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1228 GetRequests, 1134 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-11-29 01:14:43,514 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 1450 mSDsluCounter, 22849 mSDsCounter, 0 mSdLazyCounter, 2372 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 26492 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:43,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 26492 Invalid, 2614 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [242 Valid, 2372 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 01:14:43,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30423 states. [2023-11-29 01:14:44,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30423 to 30423. [2023-11-29 01:14:44,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30423 states, 20806 states have (on average 1.3362972219552052) internal successors, (27803), 21142 states have internal predecessors, (27803), 8630 states have call successors, (8630), 971 states have call predecessors, (8630), 986 states have return successors, (8725), 8537 states have call predecessors, (8725), 8629 states have call successors, (8725) [2023-11-29 01:14:44,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30423 states to 30423 states and 45158 transitions. [2023-11-29 01:14:44,515 INFO L78 Accepts]: Start accepts. Automaton has 30423 states and 45158 transitions. Word has length 615 [2023-11-29 01:14:44,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:44,516 INFO L495 AbstractCegarLoop]: Abstraction has 30423 states and 45158 transitions. [2023-11-29 01:14:44,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.229166666666667) internal successors, (502), 96 states have internal predecessors, (502), 2 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-11-29 01:14:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand 30423 states and 45158 transitions. [2023-11-29 01:14:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2023-11-29 01:14:44,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:44,571 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:44,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 01:14:44,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 01:14:44,771 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:44,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:44,772 INFO L85 PathProgramCache]: Analyzing trace with hash 115583883, now seen corresponding path program 2 times [2023-11-29 01:14:44,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:44,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644480464] [2023-11-29 01:14:44,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:44,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:45,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:45,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644480464] [2023-11-29 01:14:45,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:14:45,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909081657] [2023-11-29 01:14:45,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:14:45,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:45,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:45,017 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:45,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:14:46,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:14:46,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:14:46,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:14:46,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1472 trivial. 0 not checked. [2023-11-29 01:14:46,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:14:46,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909081657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:14:46,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:14:46,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:14:46,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637531832] [2023-11-29 01:14:46,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:14:46,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:14:46,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:46,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:14:46,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:14:46,617 INFO L87 Difference]: Start difference. First operand 30423 states and 45158 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2023-11-29 01:14:49,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:14:49,247 INFO L93 Difference]: Finished difference Result 91197 states and 135474 transitions. [2023-11-29 01:14:49,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:14:49,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 509 [2023-11-29 01:14:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:14:49,444 INFO L225 Difference]: With dead ends: 91197 [2023-11-29 01:14:49,444 INFO L226 Difference]: Without dead ends: 60798 [2023-11-29 01:14:49,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:14:49,542 INFO L413 NwaCegarLoop]: 3642 mSDtfsCounter, 3831 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3831 SdHoareTripleChecker+Valid, 7253 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:14:49,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3831 Valid, 7253 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:14:49,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60798 states. [2023-11-29 01:14:51,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60798 to 60795. [2023-11-29 01:14:51,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60795 states, 41586 states have (on average 1.3360986870581446) internal successors, (55563), 42258 states have internal predecessors, (55563), 17238 states have call successors, (17238), 1939 states have call predecessors, (17238), 1970 states have return successors, (17501), 17053 states have call predecessors, (17501), 17237 states have call successors, (17501) [2023-11-29 01:14:51,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60795 states to 60795 states and 90302 transitions. [2023-11-29 01:14:51,722 INFO L78 Accepts]: Start accepts. Automaton has 60795 states and 90302 transitions. Word has length 509 [2023-11-29 01:14:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:14:51,723 INFO L495 AbstractCegarLoop]: Abstraction has 60795 states and 90302 transitions. [2023-11-29 01:14:51,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2023-11-29 01:14:51,723 INFO L276 IsEmpty]: Start isEmpty. Operand 60795 states and 90302 transitions. [2023-11-29 01:14:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-11-29 01:14:51,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:14:51,881 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:14:51,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 01:14:52,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:52,082 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:14:52,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:14:52,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1082473639, now seen corresponding path program 1 times [2023-11-29 01:14:52,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:14:52,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94402080] [2023-11-29 01:14:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:52,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:14:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:52,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:14:52,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94402080] [2023-11-29 01:14:52,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:14:52,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896412921] [2023-11-29 01:14:52,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:14:52,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:14:52,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:14:52,459 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:14:52,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:14:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:14:54,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 5591 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:14:54,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:14:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 8 proven. 715 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2023-11-29 01:14:54,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:14:55,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2023-11-29 01:14:55,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896412921] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:14:55,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:14:55,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2023-11-29 01:14:55,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626057143] [2023-11-29 01:14:55,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:14:55,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-29 01:14:55,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:14:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-29 01:14:55,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 01:14:55,636 INFO L87 Difference]: Start difference. First operand 60795 states and 90302 transitions. Second operand has 48 states, 48 states have (on average 5.854166666666667) internal successors, (281), 48 states have internal predecessors, (281), 46 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 46 states have call predecessors, (119), 46 states have call successors, (119) [2023-11-29 01:15:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:00,846 INFO L93 Difference]: Finished difference Result 122718 states and 182848 transitions. [2023-11-29 01:15:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 01:15:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.854166666666667) internal successors, (281), 48 states have internal predecessors, (281), 46 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 46 states have call predecessors, (119), 46 states have call successors, (119) Word has length 510 [2023-11-29 01:15:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:01,132 INFO L225 Difference]: With dead ends: 122718 [2023-11-29 01:15:01,132 INFO L226 Difference]: Without dead ends: 61947 [2023-11-29 01:15:01,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 972 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 01:15:01,451 INFO L413 NwaCegarLoop]: 3643 mSDtfsCounter, 2 mSDsluCounter, 14564 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18207 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:01,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18207 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 01:15:01,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61947 states. [2023-11-29 01:15:03,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61947 to 61947. [2023-11-29 01:15:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61947 states, 42354 states have (on average 1.3300042498937528) internal successors, (56331), 43026 states have internal predecessors, (56331), 17622 states have call successors, (17622), 1939 states have call predecessors, (17622), 1970 states have return successors, (17885), 17437 states have call predecessors, (17885), 17621 states have call successors, (17885) [2023-11-29 01:15:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61947 states to 61947 states and 91838 transitions. [2023-11-29 01:15:03,707 INFO L78 Accepts]: Start accepts. Automaton has 61947 states and 91838 transitions. Word has length 510 [2023-11-29 01:15:03,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:03,708 INFO L495 AbstractCegarLoop]: Abstraction has 61947 states and 91838 transitions. [2023-11-29 01:15:03,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.854166666666667) internal successors, (281), 48 states have internal predecessors, (281), 46 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (119), 46 states have call predecessors, (119), 46 states have call successors, (119) [2023-11-29 01:15:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 61947 states and 91838 transitions. [2023-11-29 01:15:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2023-11-29 01:15:03,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:03,865 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:03,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 01:15:04,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:04,066 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:15:04,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:04,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1280404052, now seen corresponding path program 1 times [2023-11-29 01:15:04,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:04,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934330816] [2023-11-29 01:15:04,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:04,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:04,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:04,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934330816] [2023-11-29 01:15:04,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:15:04,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616483901] [2023-11-29 01:15:04,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:04,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:04,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:04,451 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:04,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:15:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:06,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 5822 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:15:06,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 01:15:06,501 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:15:06,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616483901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:06,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:15:06,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:15:06,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272528020] [2023-11-29 01:15:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:06,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:15:06,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:15:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:15:06,503 INFO L87 Difference]: Start difference. First operand 61947 states and 91838 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 01:15:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:11,332 INFO L93 Difference]: Finished difference Result 180577 states and 267718 transitions. [2023-11-29 01:15:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:15:11,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 481 [2023-11-29 01:15:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:11,938 INFO L225 Difference]: With dead ends: 180577 [2023-11-29 01:15:11,938 INFO L226 Difference]: Without dead ends: 118654 [2023-11-29 01:15:12,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:15:12,232 INFO L413 NwaCegarLoop]: 4954 mSDtfsCounter, 3257 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3257 SdHoareTripleChecker+Valid, 8565 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:12,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3257 Valid, 8565 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:15:12,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118654 states. [2023-11-29 01:15:16,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118654 to 118651. [2023-11-29 01:15:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118651 states, 81110 states have (on average 1.3268770805079522) internal successors, (107623), 82302 states have internal predecessors, (107623), 33856 states have call successors, (33856), 3621 states have call predecessors, (33856), 3684 states have return successors, (34383), 33575 states have call predecessors, (34383), 33855 states have call successors, (34383) [2023-11-29 01:15:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118651 states to 118651 states and 175862 transitions. [2023-11-29 01:15:17,283 INFO L78 Accepts]: Start accepts. Automaton has 118651 states and 175862 transitions. Word has length 481 [2023-11-29 01:15:17,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:17,284 INFO L495 AbstractCegarLoop]: Abstraction has 118651 states and 175862 transitions. [2023-11-29 01:15:17,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2023-11-29 01:15:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 118651 states and 175862 transitions. [2023-11-29 01:15:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-11-29 01:15:17,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:17,651 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:17,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 01:15:17,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 01:15:17,852 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:15:17,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:17,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1089059898, now seen corresponding path program 1 times [2023-11-29 01:15:17,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:17,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000596366] [2023-11-29 01:15:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:17,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:18,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:18,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000596366] [2023-11-29 01:15:18,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:15:18,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527833119] [2023-11-29 01:15:18,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:18,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:18,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:18,288 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:18,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:15:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:20,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 5962 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:15:20,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2023-11-29 01:15:20,375 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:15:20,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527833119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:20,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:15:20,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:15:20,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942332931] [2023-11-29 01:15:20,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:20,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:15:20,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:20,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:15:20,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:15:20,377 INFO L87 Difference]: Start difference. First operand 118651 states and 175862 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 3 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2023-11-29 01:15:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:27,617 INFO L93 Difference]: Finished difference Result 295401 states and 437966 transitions. [2023-11-29 01:15:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:15:27,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 3 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 510 [2023-11-29 01:15:27,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:28,509 INFO L225 Difference]: With dead ends: 295401 [2023-11-29 01:15:28,509 INFO L226 Difference]: Without dead ends: 176782 [2023-11-29 01:15:29,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:15:29,060 INFO L413 NwaCegarLoop]: 4442 mSDtfsCounter, 3491 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3491 SdHoareTripleChecker+Valid, 7833 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:29,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3491 Valid, 7833 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:15:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176782 states. [2023-11-29 01:15:34,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176782 to 176571. [2023-11-29 01:15:35,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176571 states, 120798 states have (on average 1.327099786420305) internal successors, (160311), 122582 states have internal predecessors, (160311), 50296 states have call successors, (50296), 5381 states have call predecessors, (50296), 5476 states have return successors, (51063), 49855 states have call predecessors, (51063), 50295 states have call successors, (51063) [2023-11-29 01:15:36,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176571 states to 176571 states and 261670 transitions. [2023-11-29 01:15:36,418 INFO L78 Accepts]: Start accepts. Automaton has 176571 states and 261670 transitions. Word has length 510 [2023-11-29 01:15:36,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:36,419 INFO L495 AbstractCegarLoop]: Abstraction has 176571 states and 261670 transitions. [2023-11-29 01:15:36,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 3 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2023-11-29 01:15:36,419 INFO L276 IsEmpty]: Start isEmpty. Operand 176571 states and 261670 transitions. [2023-11-29 01:15:36,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2023-11-29 01:15:36,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:36,740 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:36,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 01:15:36,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:36,941 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:15:36,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:36,941 INFO L85 PathProgramCache]: Analyzing trace with hash 913486358, now seen corresponding path program 1 times [2023-11-29 01:15:36,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:36,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437102289] [2023-11-29 01:15:36,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:36,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:37,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:37,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437102289] [2023-11-29 01:15:37,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:15:37,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465831699] [2023-11-29 01:15:37,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:37,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:37,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:37,202 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:37,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 01:15:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:39,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 6003 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:15:39,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2023-11-29 01:15:39,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:15:39,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465831699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:39,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:15:39,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:15:39,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103516672] [2023-11-29 01:15:39,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:39,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:15:39,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:39,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:15:39,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:15:39,305 INFO L87 Difference]: Start difference. First operand 176571 states and 261670 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2023-11-29 01:15:46,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:46,880 INFO L93 Difference]: Finished difference Result 353134 states and 523324 transitions. [2023-11-29 01:15:46,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:15:46,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 525 [2023-11-29 01:15:46,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:47,825 INFO L225 Difference]: With dead ends: 353134 [2023-11-29 01:15:47,825 INFO L226 Difference]: Without dead ends: 176571 [2023-11-29 01:15:48,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:15:48,407 INFO L413 NwaCegarLoop]: 3644 mSDtfsCounter, 0 mSDsluCounter, 3641 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7285 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:48,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7285 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:15:48,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176571 states. [2023-11-29 01:15:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176571 to 176571. [2023-11-29 01:15:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176571 states, 120798 states have (on average 1.3269011076342323) internal successors, (160287), 122582 states have internal predecessors, (160287), 50296 states have call successors, (50296), 5381 states have call predecessors, (50296), 5476 states have return successors, (51063), 49855 states have call predecessors, (51063), 50295 states have call successors, (51063) [2023-11-29 01:15:56,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176571 states to 176571 states and 261646 transitions. [2023-11-29 01:15:56,286 INFO L78 Accepts]: Start accepts. Automaton has 176571 states and 261646 transitions. Word has length 525 [2023-11-29 01:15:56,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:56,287 INFO L495 AbstractCegarLoop]: Abstraction has 176571 states and 261646 transitions. [2023-11-29 01:15:56,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2023-11-29 01:15:56,287 INFO L276 IsEmpty]: Start isEmpty. Operand 176571 states and 261646 transitions. [2023-11-29 01:15:56,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2023-11-29 01:15:56,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:56,631 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:56,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 01:15:56,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:56,832 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:15:56,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:56,832 INFO L85 PathProgramCache]: Analyzing trace with hash -254712886, now seen corresponding path program 1 times [2023-11-29 01:15:56,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:56,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640675030] [2023-11-29 01:15:56,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:56,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:57,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:57,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640675030] [2023-11-29 01:15:57,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:15:57,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663228115] [2023-11-29 01:15:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:57,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:57,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:57,382 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:57,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 01:15:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:59,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 6074 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:15:59,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-11-29 01:15:59,487 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:15:59,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663228115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:59,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:15:59,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:15:59,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616651822] [2023-11-29 01:15:59,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:59,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:15:59,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:59,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:15:59,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:15:59,490 INFO L87 Difference]: Start difference. First operand 176571 states and 261646 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2023-11-29 01:16:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:07,626 INFO L93 Difference]: Finished difference Result 353142 states and 523308 transitions. [2023-11-29 01:16:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:16:07,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 539 [2023-11-29 01:16:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:08,421 INFO L225 Difference]: With dead ends: 353142 [2023-11-29 01:16:08,421 INFO L226 Difference]: Without dead ends: 176603 [2023-11-29 01:16:09,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:16:09,345 INFO L413 NwaCegarLoop]: 3642 mSDtfsCounter, 14 mSDsluCounter, 3605 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 7247 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:09,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 7247 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:16:09,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176603 states. [2023-11-29 01:16:15,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176603 to 176595. [2023-11-29 01:16:15,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176595 states, 120822 states have (on average 1.326836172220291) internal successors, (160311), 122606 states have internal predecessors, (160311), 50296 states have call successors, (50296), 5381 states have call predecessors, (50296), 5476 states have return successors, (51063), 49855 states have call predecessors, (51063), 50295 states have call successors, (51063) [2023-11-29 01:16:16,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176595 states to 176595 states and 261670 transitions. [2023-11-29 01:16:16,602 INFO L78 Accepts]: Start accepts. Automaton has 176595 states and 261670 transitions. Word has length 539 [2023-11-29 01:16:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:16,603 INFO L495 AbstractCegarLoop]: Abstraction has 176595 states and 261670 transitions. [2023-11-29 01:16:16,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2023-11-29 01:16:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 176595 states and 261670 transitions. [2023-11-29 01:16:16,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2023-11-29 01:16:16,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:16,913 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:16,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 01:16:17,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:17,114 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:17,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:17,114 INFO L85 PathProgramCache]: Analyzing trace with hash 525673351, now seen corresponding path program 1 times [2023-11-29 01:16:17,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:17,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253729591] [2023-11-29 01:16:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:17,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:17,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:17,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253729591] [2023-11-29 01:16:17,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:16:17,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301535948] [2023-11-29 01:16:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:17,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:17,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:17,689 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:16:17,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 01:16:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:19,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 6098 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:16:19,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:16:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2023-11-29 01:16:19,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:16:19,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301535948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:19,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:19,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:16:19,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455686120] [2023-11-29 01:16:19,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:19,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:16:19,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:19,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:16:19,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:16:19,826 INFO L87 Difference]: Start difference. First operand 176595 states and 261670 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 3 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2023-11-29 01:16:27,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:27,580 INFO L93 Difference]: Finished difference Result 358382 states and 531636 transitions. [2023-11-29 01:16:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:16:27,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 3 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 540 [2023-11-29 01:16:27,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:28,516 INFO L225 Difference]: With dead ends: 358382 [2023-11-29 01:16:28,516 INFO L226 Difference]: Without dead ends: 181819 [2023-11-29 01:16:29,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:16:29,089 INFO L413 NwaCegarLoop]: 3644 mSDtfsCounter, 267 mSDsluCounter, 3636 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 7280 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:29,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 7280 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:16:29,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181819 states. [2023-11-29 01:16:34,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181819 to 176931. [2023-11-29 01:16:35,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176931 states, 121110 states have (on average 1.3272479564032698) internal successors, (160743), 122894 states have internal predecessors, (160743), 50344 states have call successors, (50344), 5381 states have call predecessors, (50344), 5476 states have return successors, (51111), 49903 states have call predecessors, (51111), 50343 states have call successors, (51111) [2023-11-29 01:16:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176931 states to 176931 states and 262198 transitions. [2023-11-29 01:16:36,167 INFO L78 Accepts]: Start accepts. Automaton has 176931 states and 262198 transitions. Word has length 540 [2023-11-29 01:16:36,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:36,168 INFO L495 AbstractCegarLoop]: Abstraction has 176931 states and 262198 transitions. [2023-11-29 01:16:36,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 3 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2023-11-29 01:16:36,168 INFO L276 IsEmpty]: Start isEmpty. Operand 176931 states and 262198 transitions. [2023-11-29 01:16:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2023-11-29 01:16:36,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:36,470 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:36,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 01:16:36,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 01:16:36,671 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:36,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:36,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1694950156, now seen corresponding path program 1 times [2023-11-29 01:16:36,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:36,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667530946] [2023-11-29 01:16:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:36,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:37,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:37,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667530946] [2023-11-29 01:16:37,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:16:37,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155872915] [2023-11-29 01:16:37,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:37,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:37,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:37,209 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:16:37,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 01:16:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:39,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 6114 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:16:39,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:16:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2023-11-29 01:16:39,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:16:39,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155872915] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:39,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:39,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:16:39,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122560742] [2023-11-29 01:16:39,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:39,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:16:39,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:39,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:16:39,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:16:39,450 INFO L87 Difference]: Start difference. First operand 176931 states and 262198 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2023-11-29 01:16:47,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:47,133 INFO L93 Difference]: Finished difference Result 353830 states and 524356 transitions. [2023-11-29 01:16:47,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:16:47,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 542 [2023-11-29 01:16:47,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:47,849 INFO L225 Difference]: With dead ends: 353830 [2023-11-29 01:16:47,849 INFO L226 Difference]: Without dead ends: 176931 [2023-11-29 01:16:48,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:16:48,632 INFO L413 NwaCegarLoop]: 3641 mSDtfsCounter, 3756 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3756 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:48,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3756 Valid, 3641 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:16:48,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176931 states. [2023-11-29 01:16:54,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176931 to 176931. [2023-11-29 01:16:55,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176931 states, 121110 states have (on average 1.3268516224919495) internal successors, (160695), 122894 states have internal predecessors, (160695), 50344 states have call successors, (50344), 5381 states have call predecessors, (50344), 5476 states have return successors, (51111), 49903 states have call predecessors, (51111), 50343 states have call successors, (51111) [2023-11-29 01:16:56,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176931 states to 176931 states and 262150 transitions. [2023-11-29 01:16:56,176 INFO L78 Accepts]: Start accepts. Automaton has 176931 states and 262150 transitions. Word has length 542 [2023-11-29 01:16:56,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:56,176 INFO L495 AbstractCegarLoop]: Abstraction has 176931 states and 262150 transitions. [2023-11-29 01:16:56,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 2 states have internal predecessors, (242), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2023-11-29 01:16:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 176931 states and 262150 transitions. [2023-11-29 01:16:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2023-11-29 01:16:56,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:56,487 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:56,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 01:16:56,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 01:16:56,688 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:16:56,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:56,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1726394806, now seen corresponding path program 1 times [2023-11-29 01:16:56,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:56,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433064172] [2023-11-29 01:16:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:56,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:57,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:57,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433064172] [2023-11-29 01:16:57,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:16:57,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752625095] [2023-11-29 01:16:57,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:57,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:57,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:57,228 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:16:57,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 01:16:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:59,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 6103 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:16:59,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:16:59,324 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-11-29 01:16:59,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:16:59,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752625095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:59,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:16:59,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:16:59,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443625607] [2023-11-29 01:16:59,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:59,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:16:59,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:59,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:16:59,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:16:59,327 INFO L87 Difference]: Start difference. First operand 176931 states and 262150 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2023-11-29 01:17:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:17:08,269 INFO L93 Difference]: Finished difference Result 354142 states and 524716 transitions. [2023-11-29 01:17:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:17:08,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 542 [2023-11-29 01:17:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:17:09,023 INFO L225 Difference]: With dead ends: 354142 [2023-11-29 01:17:09,023 INFO L226 Difference]: Without dead ends: 177243 [2023-11-29 01:17:09,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:17:09,881 INFO L413 NwaCegarLoop]: 3638 mSDtfsCounter, 11 mSDsluCounter, 7266 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10904 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:17:09,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10904 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 01:17:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177243 states. [2023-11-29 01:17:16,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177243 to 177075. [2023-11-29 01:17:16,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177075 states, 121254 states have (on average 1.3264634568756495) internal successors, (160839), 123038 states have internal predecessors, (160839), 50344 states have call successors, (50344), 5381 states have call predecessors, (50344), 5476 states have return successors, (51111), 49903 states have call predecessors, (51111), 50343 states have call successors, (51111) [2023-11-29 01:17:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177075 states to 177075 states and 262294 transitions. [2023-11-29 01:17:17,468 INFO L78 Accepts]: Start accepts. Automaton has 177075 states and 262294 transitions. Word has length 542 [2023-11-29 01:17:17,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:17:17,468 INFO L495 AbstractCegarLoop]: Abstraction has 177075 states and 262294 transitions. [2023-11-29 01:17:17,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 2 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2023-11-29 01:17:17,468 INFO L276 IsEmpty]: Start isEmpty. Operand 177075 states and 262294 transitions. [2023-11-29 01:17:17,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2023-11-29 01:17:17,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:17:17,765 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:17:17,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 01:17:17,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:17:17,965 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:17:17,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:17:17,966 INFO L85 PathProgramCache]: Analyzing trace with hash 628170649, now seen corresponding path program 1 times [2023-11-29 01:17:17,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:17:17,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344801712] [2023-11-29 01:17:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:17:17,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:17:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:17:18,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:17:18,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344801712] [2023-11-29 01:17:18,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:17:18,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373512686] [2023-11-29 01:17:18,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:17:18,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:17:18,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:17:18,228 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:17:18,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd2f74d-c57a-4ce5-8000-38347ac96577/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 01:17:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:17:20,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 6104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:17:20,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:17:20,610 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2023-11-29 01:17:20,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:17:20,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373512686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:17:20,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:17:20,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:17:20,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267926576] [2023-11-29 01:17:20,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:17:20,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:17:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:17:20,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:17:20,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:17:20,612 INFO L87 Difference]: Start difference. First operand 177075 states and 262294 transitions. Second operand has 6 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (76), 3 states have call predecessors, (76), 2 states have call successors, (76)