./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.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_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/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_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/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_dca4448e-cc41-408d-92eb-fba5045729d0/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 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:35:36,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:35:36,305 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 01:35:36,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:35:36,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:35:36,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:35:36,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:35:36,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:35:36,337 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:35:36,338 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:35:36,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:35:36,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:35:36,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:35:36,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:35:36,340 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:35:36,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:35:36,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:35:36,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:35:36,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:35:36,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:35:36,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:35:36,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:35:36,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:35:36,345 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:35:36,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:35:36,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:35:36,346 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:35:36,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:35:36,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:35:36,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:35:36,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:35:36,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:35:36,348 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:35:36,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:35:36,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:35:36,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:35:36,349 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:35:36,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:35:36,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:35:36,349 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_dca4448e-cc41-408d-92eb-fba5045729d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2023-11-29 01:35:36,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:35:36,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:35:36,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:35:36,564 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:35:36,565 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:35:36,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-29 01:35:39,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:35:39,812 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:35:39,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-29 01:35:39,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/data/741bbe3e6/11788fc2cc5d44b68b58892328d2af89/FLAG25f5ee5fb [2023-11-29 01:35:39,858 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/data/741bbe3e6/11788fc2cc5d44b68b58892328d2af89 [2023-11-29 01:35:39,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:35:39,862 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:35:39,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:35:39,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:35:39,867 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:35:39,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:35:39" (1/1) ... [2023-11-29 01:35:39,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39b10ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:39, skipping insertion in model container [2023-11-29 01:35:39,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:35:39" (1/1) ... [2023-11-29 01:35:39,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:35:41,467 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_dca4448e-cc41-408d-92eb-fba5045729d0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2023-11-29 01:35:41,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:35:41,569 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:35:41,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6219-6225] [2023-11-29 01:35:41,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6232-6239] [2023-11-29 01:35:41,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6248] [2023-11-29 01:35:41,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/inst/current/envs/linux-3.0.1/linux-3.0.1/arch/x86/include/asm/paravirt.h"), "i" (853), "i" (sizeof(struct bug_entry ))); [6305-6311] [2023-11-29 01:35:41,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("" "771:\n\t" "call *%c[paravirt_opptr];" "\n" "772:\n" ".pushsection .parainstructions,\"a\"\n" " " ".balign 8" " " "\n" " " ".quad" " " " 771b\n" " .byte " "%c[paravirt_typenum]" "\n" " .byte 772b-771b\n" " .short " "%c[paravirt_clobber]" "\n" ".popsection\n" "": "=a" (__eax): [paravirt_typenum] "i" ((unsigned long )((unsigned int )(& ((struct paravirt_patch_template *)0)->pv_irq_ops.save_fl.func)) / sizeof(void *)), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6331-6355] [2023-11-29 01:35:41,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("" "771:\n\t" "call *%c[paravirt_opptr];" "\n" "772:\n" ".pushsection .parainstructions,\"a\"\n" " " ".balign 8" " " "\n" " " ".quad" " " " 771b\n" " .byte " "%c[paravirt_typenum]" "\n" " .byte 772b-771b\n" " .short " "%c[paravirt_clobber]" "\n" ".popsection\n" "": "=a" (__eax): [paravirt_typenum] "i" ((unsigned long )((unsigned int )(& ((struct paravirt_patch_template *)0)->pv_irq_ops.save_fl.func)) / sizeof(void *)), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6358-6382] [2023-11-29 01:35:41,940 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_dca4448e-cc41-408d-92eb-fba5045729d0/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2023-11-29 01:35:41,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:35:42,000 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:35:42,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42 WrapperNode [2023-11-29 01:35:42,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:35:42,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:35:42,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:35:42,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:35:42,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,182 INFO L138 Inliner]: procedures = 177, calls = 1697, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 4118 [2023-11-29 01:35:42,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:35:42,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:35:42,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:35:42,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:35:42,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,753 INFO L175 MemorySlicer]: Split 805 memory accesses to 20 slices as follows [2, 8, 5, 16, 1, 1, 16, 3, 9, 5, 110, 8, 8, 91, 8, 3, 2, 1, 40, 468]. 58 percent of accesses are in the largest equivalence class. The 309 initializations are split as follows [2, 0, 0, 16, 0, 0, 16, 0, 0, 0, 110, 0, 8, 46, 8, 0, 0, 1, 40, 62]. The 213 writes are split as follows [0, 2, 0, 0, 0, 0, 0, 1, 2, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 205]. [2023-11-29 01:35:42,754 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,835 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:35:42,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:35:42,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:35:42,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:35:42,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (1/1) ... [2023-11-29 01:35:42,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:35:42,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:35:42,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:35:42,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:35:43,002 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-29 01:35:43,003 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-29 01:35:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-29 01:35:43,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-29 01:35:43,003 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-29 01:35:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-29 01:35:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2023-11-29 01:35:43,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2023-11-29 01:35:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-29 01:35:43,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-29 01:35:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-29 01:35:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-29 01:35:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-29 01:35:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-29 01:35:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-29 01:35:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-29 01:35:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-29 01:35:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-29 01:35:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-29 01:35:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-29 01:35:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-29 01:35:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-29 01:35:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-29 01:35:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-29 01:35:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-29 01:35:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2023-11-29 01:35:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2023-11-29 01:35:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2023-11-29 01:35:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-29 01:35:43,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-29 01:35:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-29 01:35:43,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-29 01:35:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2023-11-29 01:35:43,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-29 01:35:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-29 01:35:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-29 01:35:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-29 01:35:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-29 01:35:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-29 01:35:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-29 01:35:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-29 01:35:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-29 01:35:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-29 01:35:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-29 01:35:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2023-11-29 01:35:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2023-11-29 01:35:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2023-11-29 01:35:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-29 01:35:43,012 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 01:35:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 01:35:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 01:35:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 01:35:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 01:35:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 01:35:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-29 01:35:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-29 01:35:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-29 01:35:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-29 01:35:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-29 01:35:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-29 01:35:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-29 01:35:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2023-11-29 01:35:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2023-11-29 01:35:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-29 01:35:43,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-29 01:35:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-29 01:35:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-29 01:35:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-29 01:35:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-29 01:35:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-29 01:35:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-29 01:35:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-11-29 01:35:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2023-11-29 01:35:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2023-11-29 01:35:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2023-11-29 01:35:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2023-11-29 01:35:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#17 [2023-11-29 01:35:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#18 [2023-11-29 01:35:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#19 [2023-11-29 01:35:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-29 01:35:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-29 01:35:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-29 01:35:43,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-29 01:35:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-29 01:35:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-29 01:35:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-29 01:35:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-29 01:35:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-29 01:35:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-29 01:35:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-29 01:35:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-29 01:35:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-11-29 01:35:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2023-11-29 01:35:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2023-11-29 01:35:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2023-11-29 01:35:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2023-11-29 01:35:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#17 [2023-11-29 01:35:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#18 [2023-11-29 01:35:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#19 [2023-11-29 01:35:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-29 01:35:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-29 01:35:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-29 01:35:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-29 01:35:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-29 01:35:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-29 01:35:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-29 01:35:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-29 01:35:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-29 01:35:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-29 01:35:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2023-11-29 01:35:43,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2023-11-29 01:35:43,022 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-29 01:35:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-29 01:35:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2023-11-29 01:35:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2023-11-29 01:35:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:35:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:35:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:35:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:35:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:35:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 01:35:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 01:35:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 01:35:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 01:35:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 01:35:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 01:35:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-29 01:35:43,025 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-29 01:35:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2023-11-29 01:35:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2023-11-29 01:35:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-29 01:35:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-29 01:35:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-29 01:35:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-29 01:35:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2023-11-29 01:35:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2023-11-29 01:35:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2023-11-29 01:35:43,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2023-11-29 01:35:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2023-11-29 01:35:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2023-11-29 01:35:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-29 01:35:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-29 01:35:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:35:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-29 01:35:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-29 01:35:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2023-11-29 01:35:43,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2023-11-29 01:35:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:35:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:35:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:35:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:35:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:35:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:35:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 01:35:43,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-29 01:35:43,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-29 01:35:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-29 01:35:43,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-29 01:35:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-29 01:35:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-29 01:35:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-29 01:35:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-29 01:35:43,053 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-29 01:35:43,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-29 01:35:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:35:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:35:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:35:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 01:35:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 01:35:43,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 01:35:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 01:35:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 01:35:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 01:35:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-29 01:35:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-29 01:35:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-29 01:35:43,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-29 01:35:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-29 01:35:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-29 01:35:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-29 01:35:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-29 01:35:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-29 01:35:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-29 01:35:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-29 01:35:43,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-29 01:35:43,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-29 01:35:43,057 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-29 01:35:43,057 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-29 01:35:43,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-29 01:35:43,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-29 01:35:43,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:35:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 01:35:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 01:35:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 01:35:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 01:35:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 01:35:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 01:35:43,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-29 01:35:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-29 01:35:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-29 01:35:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-29 01:35:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-29 01:35:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-29 01:35:43,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-29 01:35:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-29 01:35:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-29 01:35:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-29 01:35:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-29 01:35:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-29 01:35:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-29 01:35:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-29 01:35:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2023-11-29 01:35:43,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2023-11-29 01:35:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-29 01:35:43,064 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-29 01:35:43,065 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-29 01:35:43,065 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-29 01:35:43,065 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-29 01:35:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-29 01:35:43,066 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-29 01:35:43,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-29 01:35:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-29 01:35:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-29 01:35:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-29 01:35:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-29 01:35:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-29 01:35:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-29 01:35:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2023-11-29 01:35:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2023-11-29 01:35:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-29 01:35:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-29 01:35:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 01:35:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 01:35:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2023-11-29 01:35:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2023-11-29 01:35:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-29 01:35:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-29 01:35:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-29 01:35:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-29 01:35:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2023-11-29 01:35:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2023-11-29 01:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-29 01:35:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-29 01:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 01:35:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-29 01:35:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-29 01:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-29 01:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-29 01:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-29 01:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-29 01:35:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-29 01:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2023-11-29 01:35:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2023-11-29 01:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-29 01:35:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-29 01:35:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2023-11-29 01:35:43,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-29 01:35:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2023-11-29 01:35:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2023-11-29 01:35:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:35:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:35:43,820 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:35:43,824 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:35:45,057 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-29 01:35:45,818 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 01:35:46,951 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2023-11-29 01:35:46,951 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2023-11-29 01:35:46,985 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 01:35:46,986 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 01:35:51,331 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume !false; [2023-11-29 01:35:51,331 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume false; [2023-11-29 01:35:51,331 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2023-11-29 01:35:51,331 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2023-11-29 01:35:51,331 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2023-11-29 01:35:52,357 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 01:35:52,454 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2023-11-29 01:35:52,454 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2023-11-29 01:35:52,566 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-29 01:35:53,344 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2023-11-29 01:35:53,344 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2023-11-29 01:35:53,407 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:35:53,653 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:35:53,654 INFO L309 CfgBuilder]: Removed 38 assume(true) statements. [2023-11-29 01:35:53,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:35:53 BoogieIcfgContainer [2023-11-29 01:35:53,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:35:53,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:35:53,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:35:53,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:35:53,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:35:39" (1/3) ... [2023-11-29 01:35:53,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32be1746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:35:53, skipping insertion in model container [2023-11-29 01:35:53,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:35:42" (2/3) ... [2023-11-29 01:35:53,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32be1746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:35:53, skipping insertion in model container [2023-11-29 01:35:53,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:35:53" (3/3) ... [2023-11-29 01:35:53,664 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-29 01:35:53,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:35:53,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:35:53,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:35:53,765 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;@5616847d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:35:53,766 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:35:53,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 1064 states, 741 states have (on average 1.4777327935222673) internal successors, (1095), 761 states have internal predecessors, (1095), 267 states have call successors, (267), 55 states have call predecessors, (267), 54 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) [2023-11-29 01:35:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 01:35:53,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:35:53,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:35:53,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:35:53,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:35:53,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1277533957, now seen corresponding path program 1 times [2023-11-29 01:35:53,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:35:53,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365743584] [2023-11-29 01:35:53,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:35:53,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:35:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:35:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:35:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:35:56,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:35:56,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365743584] [2023-11-29 01:35:56,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365743584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:35:56,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:35:56,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:35:56,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613763025] [2023-11-29 01:35:56,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:35:56,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:35:56,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:35:56,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:35:56,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:35:56,819 INFO L87 Difference]: Start difference. First operand has 1064 states, 741 states have (on average 1.4777327935222673) internal successors, (1095), 761 states have internal predecessors, (1095), 267 states have call successors, (267), 55 states have call predecessors, (267), 54 states have return successors, (265), 259 states have call predecessors, (265), 265 states have call successors, (265) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:36:01,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:05,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:09,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:13,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:14,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:36:14,612 INFO L93 Difference]: Finished difference Result 2122 states and 3300 transitions. [2023-11-29 01:36:14,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:36:14,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-29 01:36:14,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:36:14,643 INFO L225 Difference]: With dead ends: 2122 [2023-11-29 01:36:14,643 INFO L226 Difference]: Without dead ends: 1060 [2023-11-29 01:36:14,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 01:36:14,658 INFO L413 NwaCegarLoop]: 1405 mSDtfsCounter, 24 mSDsluCounter, 4188 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5593 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:36:14,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5593 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 511 Invalid, 4 Unknown, 0 Unchecked, 17.6s Time] [2023-11-29 01:36:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-11-29 01:36:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1055. [2023-11-29 01:36:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 735 states have (on average 1.3510204081632653) internal successors, (993), 751 states have internal predecessors, (993), 265 states have call successors, (265), 54 states have call predecessors, (265), 54 states have return successors, (262), 256 states have call predecessors, (262), 261 states have call successors, (262) [2023-11-29 01:36:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1520 transitions. [2023-11-29 01:36:14,793 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1520 transitions. Word has length 12 [2023-11-29 01:36:14,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:36:14,793 INFO L495 AbstractCegarLoop]: Abstraction has 1055 states and 1520 transitions. [2023-11-29 01:36:14,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:36:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1520 transitions. [2023-11-29 01:36:14,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 01:36:14,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:36:14,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:36:14,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:36:14,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:36:14,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:36:14,796 INFO L85 PathProgramCache]: Analyzing trace with hash -45754820, now seen corresponding path program 1 times [2023-11-29 01:36:14,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:36:14,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897616235] [2023-11-29 01:36:14,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:14,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:36:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:36:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:36:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:36:17,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:17,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897616235] [2023-11-29 01:36:17,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897616235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:36:17,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:36:17,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:36:17,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511305438] [2023-11-29 01:36:17,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:36:17,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:36:17,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:17,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:36:17,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:36:17,226 INFO L87 Difference]: Start difference. First operand 1055 states and 1520 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:36:21,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:26,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:30,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:30,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:36:30,637 INFO L93 Difference]: Finished difference Result 3133 states and 4555 transitions. [2023-11-29 01:36:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:36:30,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2023-11-29 01:36:30,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:36:30,657 INFO L225 Difference]: With dead ends: 3133 [2023-11-29 01:36:30,657 INFO L226 Difference]: Without dead ends: 2092 [2023-11-29 01:36:30,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 01:36:30,666 INFO L413 NwaCegarLoop]: 1901 mSDtfsCounter, 1506 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:36:30,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 3280 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 293 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2023-11-29 01:36:30,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2023-11-29 01:36:30,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2088. [2023-11-29 01:36:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 1457 states have (on average 1.351407000686342) internal successors, (1969), 1485 states have internal predecessors, (1969), 524 states have call successors, (524), 106 states have call predecessors, (524), 106 states have return successors, (535), 509 states have call predecessors, (535), 520 states have call successors, (535) [2023-11-29 01:36:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3028 transitions. [2023-11-29 01:36:30,817 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3028 transitions. Word has length 16 [2023-11-29 01:36:30,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:36:30,818 INFO L495 AbstractCegarLoop]: Abstraction has 2088 states and 3028 transitions. [2023-11-29 01:36:30,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:36:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3028 transitions. [2023-11-29 01:36:30,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 01:36:30,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:36:30,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:36:30,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:36:30,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:36:30,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:36:30,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1418877695, now seen corresponding path program 1 times [2023-11-29 01:36:30,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:36:30,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397871725] [2023-11-29 01:36:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:30,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:36:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:36:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:33,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:36:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:33,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:36:33,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:33,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397871725] [2023-11-29 01:36:33,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397871725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:36:33,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:36:33,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:36:33,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316289764] [2023-11-29 01:36:33,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:36:33,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:36:33,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:33,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:36:33,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:36:33,036 INFO L87 Difference]: Start difference. First operand 2088 states and 3028 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:36:37,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:42,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:46,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:46,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:36:46,458 INFO L93 Difference]: Finished difference Result 6233 states and 9119 transitions. [2023-11-29 01:36:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:36:46,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-11-29 01:36:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:36:46,482 INFO L225 Difference]: With dead ends: 6233 [2023-11-29 01:36:46,482 INFO L226 Difference]: Without dead ends: 4153 [2023-11-29 01:36:46,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 01:36:46,493 INFO L413 NwaCegarLoop]: 1805 mSDtfsCounter, 1505 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:36:46,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 3185 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2023-11-29 01:36:46,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2023-11-29 01:36:46,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 4142. [2023-11-29 01:36:46,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4142 states, 2892 states have (on average 1.351313969571231) internal successors, (3908), 2943 states have internal predecessors, (3908), 1041 states have call successors, (1041), 209 states have call predecessors, (1041), 208 states have return successors, (1101), 1013 states have call predecessors, (1101), 1037 states have call successors, (1101) [2023-11-29 01:36:46,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 6050 transitions. [2023-11-29 01:36:46,674 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 6050 transitions. Word has length 17 [2023-11-29 01:36:46,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:36:46,675 INFO L495 AbstractCegarLoop]: Abstraction has 4142 states and 6050 transitions. [2023-11-29 01:36:46,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:36:46,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 6050 transitions. [2023-11-29 01:36:46,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 01:36:46,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:36:46,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:46,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:36:46,678 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:36:46,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:36:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash 705931274, now seen corresponding path program 1 times [2023-11-29 01:36:46,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:36:46,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774122513] [2023-11-29 01:36:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:36:46,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:36:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:48,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:36:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:49,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 01:36:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:49,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-29 01:36:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:36:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:36:49,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:36:49,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774122513] [2023-11-29 01:36:49,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774122513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:36:49,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:36:49,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:36:49,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133827294] [2023-11-29 01:36:49,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:36:49,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:36:49,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:36:49,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:36:49,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:36:49,042 INFO L87 Difference]: Start difference. First operand 4142 states and 6050 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:36:53,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:36:57,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:01,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:05,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:05,379 INFO L93 Difference]: Finished difference Result 9228 states and 13708 transitions. [2023-11-29 01:37:05,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:37:05,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2023-11-29 01:37:05,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:05,420 INFO L225 Difference]: With dead ends: 9228 [2023-11-29 01:37:05,421 INFO L226 Difference]: Without dead ends: 5095 [2023-11-29 01:37:05,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:37:05,446 INFO L413 NwaCegarLoop]: 1235 mSDtfsCounter, 548 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 307 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 2927 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:05,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 2927 Invalid, 1575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1266 Invalid, 2 Unknown, 0 Unchecked, 16.1s Time] [2023-11-29 01:37:05,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2023-11-29 01:37:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 4263. [2023-11-29 01:37:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4263 states, 2983 states have (on average 1.348307073416024) internal successors, (4022), 3040 states have internal predecessors, (4022), 1062 states have call successors, (1062), 209 states have call predecessors, (1062), 217 states have return successors, (1161), 1037 states have call predecessors, (1161), 1058 states have call successors, (1161) [2023-11-29 01:37:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4263 states to 4263 states and 6245 transitions. [2023-11-29 01:37:05,778 INFO L78 Accepts]: Start accepts. Automaton has 4263 states and 6245 transitions. Word has length 48 [2023-11-29 01:37:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:05,778 INFO L495 AbstractCegarLoop]: Abstraction has 4263 states and 6245 transitions. [2023-11-29 01:37:05,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:37:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4263 states and 6245 transitions. [2023-11-29 01:37:05,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 01:37:05,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:05,783 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 01:37:05,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:37:05,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:05,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:05,784 INFO L85 PathProgramCache]: Analyzing trace with hash 373217017, now seen corresponding path program 1 times [2023-11-29 01:37:05,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:05,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955656666] [2023-11-29 01:37:05,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:05,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:37:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:37:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:37:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:37:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:37:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:37:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 01:37:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:37:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:08,410 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:37:08,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:08,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955656666] [2023-11-29 01:37:08,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955656666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:37:08,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:37:08,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:37:08,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81489415] [2023-11-29 01:37:08,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:37:08,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:37:08,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:37:08,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:37:08,413 INFO L87 Difference]: Start difference. First operand 4263 states and 6245 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:37:13,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:17,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:21,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:25,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:31,292 INFO L93 Difference]: Finished difference Result 9458 states and 14397 transitions. [2023-11-29 01:37:31,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:37:31,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2023-11-29 01:37:31,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:31,349 INFO L225 Difference]: With dead ends: 9458 [2023-11-29 01:37:31,349 INFO L226 Difference]: Without dead ends: 5205 [2023-11-29 01:37:31,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:37:31,367 INFO L413 NwaCegarLoop]: 1139 mSDtfsCounter, 2216 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 942 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 942 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:31,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2425 Valid, 2825 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [942 Valid, 1656 Invalid, 4 Unknown, 0 Unchecked, 22.2s Time] [2023-11-29 01:37:31,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5205 states. [2023-11-29 01:37:31,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5205 to 4328. [2023-11-29 01:37:31,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4328 states, 3015 states have (on average 1.3439469320066335) internal successors, (4052), 3080 states have internal predecessors, (4052), 1073 states have call successors, (1073), 209 states have call predecessors, (1073), 239 states have return successors, (1233), 1062 states have call predecessors, (1233), 1070 states have call successors, (1233) [2023-11-29 01:37:31,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4328 states to 4328 states and 6358 transitions. [2023-11-29 01:37:31,694 INFO L78 Accepts]: Start accepts. Automaton has 4328 states and 6358 transitions. Word has length 81 [2023-11-29 01:37:31,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:31,695 INFO L495 AbstractCegarLoop]: Abstraction has 4328 states and 6358 transitions. [2023-11-29 01:37:31,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:37:31,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4328 states and 6358 transitions. [2023-11-29 01:37:31,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 01:37:31,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:31,699 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 01:37:31,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:37:31,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:31,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:31,699 INFO L85 PathProgramCache]: Analyzing trace with hash 175577584, now seen corresponding path program 1 times [2023-11-29 01:37:31,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:31,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616078901] [2023-11-29 01:37:31,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:31,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:33,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:37:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:37:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:37:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:37:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:37:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:37:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 01:37:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:37:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:34,212 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:37:34,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:34,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616078901] [2023-11-29 01:37:34,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616078901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:37:34,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:37:34,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:37:34,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530615347] [2023-11-29 01:37:34,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:37:34,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:37:34,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:34,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:37:34,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:37:34,215 INFO L87 Difference]: Start difference. First operand 4328 states and 6358 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 01:37:39,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:43,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:47,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:51,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:37:56,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:56,046 INFO L93 Difference]: Finished difference Result 9539 states and 14538 transitions. [2023-11-29 01:37:56,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:37:56,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 89 [2023-11-29 01:37:56,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:56,088 INFO L225 Difference]: With dead ends: 9539 [2023-11-29 01:37:56,088 INFO L226 Difference]: Without dead ends: 5221 [2023-11-29 01:37:56,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:37:56,130 INFO L413 NwaCegarLoop]: 1179 mSDtfsCounter, 882 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 656 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 2925 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:56,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 2925 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1559 Invalid, 3 Unknown, 0 Unchecked, 21.4s Time] [2023-11-29 01:37:56,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2023-11-29 01:37:56,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 4336. [2023-11-29 01:37:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 3023 states have (on average 1.3430367184915646) internal successors, (4060), 3088 states have internal predecessors, (4060), 1073 states have call successors, (1073), 209 states have call predecessors, (1073), 239 states have return successors, (1233), 1062 states have call predecessors, (1233), 1070 states have call successors, (1233) [2023-11-29 01:37:56,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 6366 transitions. [2023-11-29 01:37:56,574 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 6366 transitions. Word has length 89 [2023-11-29 01:37:56,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:56,575 INFO L495 AbstractCegarLoop]: Abstraction has 4336 states and 6366 transitions. [2023-11-29 01:37:56,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 01:37:56,575 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 6366 transitions. [2023-11-29 01:37:56,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:37:56,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:56,594 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:56,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:37:56,594 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:56,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:56,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1083266683, now seen corresponding path program 1 times [2023-11-29 01:37:56,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:56,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604003572] [2023-11-29 01:37:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:56,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:58,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:37:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:58,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:37:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:58,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:37:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:58,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:37:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:37:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:59,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:37:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-29 01:37:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:59,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:37:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 01:37:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:37:59,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:59,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604003572] [2023-11-29 01:37:59,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604003572] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:37:59,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524484755] [2023-11-29 01:37:59,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:59,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:37:59,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:59,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:37:59,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:38:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:01,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 2823 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:38:01,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:38:02,045 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:38:02,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:38:02,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524484755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:38:02,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:38:02,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-29 01:38:02,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350930763] [2023-11-29 01:38:02,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:38:02,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:38:02,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:02,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:38:02,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:38:02,048 INFO L87 Difference]: Start difference. First operand 4336 states and 6366 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:38:07,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:11,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:15,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:19,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:19,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:38:19,963 INFO L93 Difference]: Finished difference Result 8698 states and 12763 transitions. [2023-11-29 01:38:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:38:19,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2023-11-29 01:38:19,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:38:20,000 INFO L225 Difference]: With dead ends: 8698 [2023-11-29 01:38:20,000 INFO L226 Difference]: Without dead ends: 4370 [2023-11-29 01:38:20,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:38:20,020 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 11 mSDsluCounter, 4101 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:38:20,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5473 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 503 Invalid, 4 Unknown, 0 Unchecked, 17.6s Time] [2023-11-29 01:38:20,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2023-11-29 01:38:20,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 4350. [2023-11-29 01:38:20,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4350 states, 3033 states have (on average 1.341905703923508) internal successors, (4070), 3099 states have internal predecessors, (4070), 1073 states have call successors, (1073), 209 states have call predecessors, (1073), 243 states have return successors, (1240), 1065 states have call predecessors, (1240), 1070 states have call successors, (1240) [2023-11-29 01:38:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4350 states to 4350 states and 6383 transitions. [2023-11-29 01:38:20,378 INFO L78 Accepts]: Start accepts. Automaton has 4350 states and 6383 transitions. Word has length 95 [2023-11-29 01:38:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:38:20,379 INFO L495 AbstractCegarLoop]: Abstraction has 4350 states and 6383 transitions. [2023-11-29 01:38:20,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:38:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 4350 states and 6383 transitions. [2023-11-29 01:38:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 01:38:20,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:38:20,381 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:38:20,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:38:20,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 01:38:20,582 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:38:20,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:38:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash -923197155, now seen corresponding path program 1 times [2023-11-29 01:38:20,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:38:20,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321528079] [2023-11-29 01:38:20,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:38:20,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:38:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:38:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:38:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:38:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:38:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:38:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:38:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-29 01:38:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 01:38:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 01:38:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:38:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:38:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 01:38:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 01:38:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:38:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:38:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:38:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 01:38:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:38:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:38:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:38:24,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321528079] [2023-11-29 01:38:24,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321528079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:38:24,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:38:24,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:38:24,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506948262] [2023-11-29 01:38:24,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:38:24,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:38:24,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:38:24,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:38:24,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:38:24,380 INFO L87 Difference]: Start difference. First operand 4350 states and 6383 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 01:38:35,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:39,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:43,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:47,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:51,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:55,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:38:59,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:39:03,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:39:06,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:06,126 INFO L93 Difference]: Finished difference Result 9799 states and 15043 transitions. [2023-11-29 01:39:06,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:39:06,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 123 [2023-11-29 01:39:06,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:06,155 INFO L225 Difference]: With dead ends: 9799 [2023-11-29 01:39:06,155 INFO L226 Difference]: Without dead ends: 5439 [2023-11-29 01:39:06,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:39:06,174 INFO L413 NwaCegarLoop]: 1142 mSDtfsCounter, 1497 mSDsluCounter, 4806 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 1142 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 5948 SdHoareTripleChecker+Invalid, 4558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1142 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:06,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 5948 Invalid, 4558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1142 Valid, 3408 Invalid, 8 Unknown, 0 Unchecked, 40.9s Time] [2023-11-29 01:39:06,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2023-11-29 01:39:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 4665. [2023-11-29 01:39:06,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4665 states, 3272 states have (on average 1.3429095354523228) internal successors, (4394), 3348 states have internal predecessors, (4394), 1141 states have call successors, (1141), 209 states have call predecessors, (1141), 251 states have return successors, (1356), 1133 states have call predecessors, (1356), 1138 states have call successors, (1356) [2023-11-29 01:39:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4665 states to 4665 states and 6891 transitions. [2023-11-29 01:39:06,557 INFO L78 Accepts]: Start accepts. Automaton has 4665 states and 6891 transitions. Word has length 123 [2023-11-29 01:39:06,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:06,557 INFO L495 AbstractCegarLoop]: Abstraction has 4665 states and 6891 transitions. [2023-11-29 01:39:06,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (18), 5 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 01:39:06,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4665 states and 6891 transitions. [2023-11-29 01:39:06,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 01:39:06,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:06,560 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:39:06,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:39:06,560 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:39:06,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1423865133, now seen corresponding path program 1 times [2023-11-29 01:39:06,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:06,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503165390] [2023-11-29 01:39:06,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:39:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:39:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:39:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:39:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:39:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 01:39:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 01:39:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 01:39:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 01:39:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 01:39:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 01:39:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 01:39:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:39:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 01:39:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:39:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:39:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 01:39:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:39:10,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:10,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503165390] [2023-11-29 01:39:10,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503165390] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:10,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102412950] [2023-11-29 01:39:10,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:10,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:10,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:10,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:10,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:39:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:14,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 2957 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:39:14,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:14,406 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:39:14,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:39:14,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102412950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:39:14,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:39:14,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2023-11-29 01:39:14,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260450557] [2023-11-29 01:39:14,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:39:14,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:39:14,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:14,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:39:14,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:39:14,408 INFO L87 Difference]: Start difference. First operand 4665 states and 6891 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 01:39:20,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:39:24,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:39:24,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:24,723 INFO L93 Difference]: Finished difference Result 6877 states and 10214 transitions. [2023-11-29 01:39:24,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:39:24,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 124 [2023-11-29 01:39:24,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:24,730 INFO L225 Difference]: With dead ends: 6877 [2023-11-29 01:39:24,730 INFO L226 Difference]: Without dead ends: 2222 [2023-11-29 01:39:24,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:39:24,740 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1370 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:24,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 2071 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 826 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2023-11-29 01:39:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2023-11-29 01:39:24,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2222. [2023-11-29 01:39:24,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2222 states, 1550 states have (on average 1.3387096774193548) internal successors, (2075), 1585 states have internal predecessors, (2075), 552 states have call successors, (552), 105 states have call predecessors, (552), 119 states have return successors, (603), 544 states have call predecessors, (603), 550 states have call successors, (603) [2023-11-29 01:39:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2222 states to 2222 states and 3230 transitions. [2023-11-29 01:39:24,869 INFO L78 Accepts]: Start accepts. Automaton has 2222 states and 3230 transitions. Word has length 124 [2023-11-29 01:39:24,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:24,870 INFO L495 AbstractCegarLoop]: Abstraction has 2222 states and 3230 transitions. [2023-11-29 01:39:24,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 01:39:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2222 states and 3230 transitions. [2023-11-29 01:39:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 01:39:24,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:24,873 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:39:24,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:39:25,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:25,084 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:39:25,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1466981569, now seen corresponding path program 1 times [2023-11-29 01:39:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:25,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897956175] [2023-11-29 01:39:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:27,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:39:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:27,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:39:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:39:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:39:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:39:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:39:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:39:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:39:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:39:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:39:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:39:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:39:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 01:39:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 01:39:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:39:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:39:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:39:28,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:28,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897956175] [2023-11-29 01:39:28,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897956175] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:28,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141344118] [2023-11-29 01:39:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:28,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:28,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:28,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:28,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:39:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:31,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 3136 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:39:31,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:31,525 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:39:31,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:39:31,929 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:39:31,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141344118] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:31,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:39:31,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 6] total 17 [2023-11-29 01:39:31,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170157650] [2023-11-29 01:39:31,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:39:31,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:39:31,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:31,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:39:31,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:39:31,932 INFO L87 Difference]: Start difference. First operand 2222 states and 3230 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 01:39:38,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:39:42,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:39:46,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:39:51,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:39:51,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:39:51,620 INFO L93 Difference]: Finished difference Result 3407 states and 5008 transitions. [2023-11-29 01:39:51,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:39:51,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 146 [2023-11-29 01:39:51,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:39:51,631 INFO L225 Difference]: With dead ends: 3407 [2023-11-29 01:39:51,631 INFO L226 Difference]: Without dead ends: 3404 [2023-11-29 01:39:51,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 312 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:39:51,633 INFO L413 NwaCegarLoop]: 2586 mSDtfsCounter, 2852 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2852 SdHoareTripleChecker+Valid, 4035 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:39:51,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2852 Valid, 4035 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1710 Invalid, 4 Unknown, 0 Unchecked, 19.4s Time] [2023-11-29 01:39:51,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2023-11-29 01:39:51,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3394. [2023-11-29 01:39:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 2366 states have (on average 1.3393913778529163) internal successors, (3169), 2421 states have internal predecessors, (3169), 845 states have call successors, (845), 156 states have call predecessors, (845), 182 states have return successors, (982), 836 states have call predecessors, (982), 843 states have call successors, (982) [2023-11-29 01:39:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 4996 transitions. [2023-11-29 01:39:51,843 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 4996 transitions. Word has length 146 [2023-11-29 01:39:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:39:51,844 INFO L495 AbstractCegarLoop]: Abstraction has 3394 states and 4996 transitions. [2023-11-29 01:39:51,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 5 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 01:39:51,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 4996 transitions. [2023-11-29 01:39:51,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 01:39:51,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:39:51,847 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:39:51,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:39:52,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:52,048 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:39:52,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:39:52,048 INFO L85 PathProgramCache]: Analyzing trace with hash -622509698, now seen corresponding path program 1 times [2023-11-29 01:39:52,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:39:52,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612164006] [2023-11-29 01:39:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:52,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:39:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:39:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:39:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:39:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:39:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:39:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:39:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:39:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:39:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:39:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:39:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:39:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:39:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 01:39:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 01:39:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:39:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:39:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:39:55,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:39:55,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612164006] [2023-11-29 01:39:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612164006] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:39:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966452983] [2023-11-29 01:39:55,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:39:55,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:39:55,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:39:55,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:39:55,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:39:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:39:58,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 3137 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 01:39:58,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:39:58,594 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:39:58,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:39:58,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966452983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:39:58,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:39:58,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-11-29 01:39:58,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799148372] [2023-11-29 01:39:58,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:39:58,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:39:58,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:39:58,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:39:58,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:39:58,596 INFO L87 Difference]: Start difference. First operand 3394 states and 4996 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:40:04,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:40:08,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:40:12,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:40:12,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:12,361 INFO L93 Difference]: Finished difference Result 7568 states and 11373 transitions. [2023-11-29 01:40:12,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:40:12,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 146 [2023-11-29 01:40:12,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:12,374 INFO L225 Difference]: With dead ends: 7568 [2023-11-29 01:40:12,375 INFO L226 Difference]: Without dead ends: 4184 [2023-11-29 01:40:12,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:40:12,385 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 257 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 4259 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:12,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 4259 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 388 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2023-11-29 01:40:12,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4184 states. [2023-11-29 01:40:12,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4184 to 3404. [2023-11-29 01:40:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 2376 states have (on average 1.337962962962963) internal successors, (3179), 2431 states have internal predecessors, (3179), 845 states have call successors, (845), 156 states have call predecessors, (845), 182 states have return successors, (982), 836 states have call predecessors, (982), 843 states have call successors, (982) [2023-11-29 01:40:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 5006 transitions. [2023-11-29 01:40:12,652 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 5006 transitions. Word has length 146 [2023-11-29 01:40:12,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:12,652 INFO L495 AbstractCegarLoop]: Abstraction has 3404 states and 5006 transitions. [2023-11-29 01:40:12,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:40:12,653 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 5006 transitions. [2023-11-29 01:40:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 01:40:12,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:12,656 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:40:12,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:40:12,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:12,857 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:40:12,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:12,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1470613095, now seen corresponding path program 1 times [2023-11-29 01:40:12,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:12,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882013665] [2023-11-29 01:40:12,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:12,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:40:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:15,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:40:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:15,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:40:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:40:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:40:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:40:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:40:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:40:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:40:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:40:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:40:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:40:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 01:40:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 01:40:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:40:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:40:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:40:16,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:16,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882013665] [2023-11-29 01:40:16,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882013665] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:16,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013434938] [2023-11-29 01:40:16,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:16,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:16,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:16,130 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:16,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:40:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:19,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 3186 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:40:19,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:40:19,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:40:19,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013434938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:40:19,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:19,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2023-11-29 01:40:19,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139268753] [2023-11-29 01:40:19,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:40:19,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:40:19,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:19,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:40:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:40:19,041 INFO L87 Difference]: Start difference. First operand 3404 states and 5006 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:40:24,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:40:28,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:40:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:28,293 INFO L93 Difference]: Finished difference Result 6828 states and 10167 transitions. [2023-11-29 01:40:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:40:28,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2023-11-29 01:40:28,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:28,307 INFO L225 Difference]: With dead ends: 6828 [2023-11-29 01:40:28,307 INFO L226 Difference]: Without dead ends: 3434 [2023-11-29 01:40:28,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:40:28,322 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 7 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:28,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2648 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2023-11-29 01:40:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2023-11-29 01:40:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3409. [2023-11-29 01:40:28,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3409 states, 2381 states have (on average 1.3372532549349012) internal successors, (3184), 2436 states have internal predecessors, (3184), 845 states have call successors, (845), 156 states have call predecessors, (845), 182 states have return successors, (982), 836 states have call predecessors, (982), 843 states have call successors, (982) [2023-11-29 01:40:28,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3409 states to 3409 states and 5011 transitions. [2023-11-29 01:40:28,603 INFO L78 Accepts]: Start accepts. Automaton has 3409 states and 5011 transitions. Word has length 152 [2023-11-29 01:40:28,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:28,604 INFO L495 AbstractCegarLoop]: Abstraction has 3409 states and 5011 transitions. [2023-11-29 01:40:28,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:40:28,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3409 states and 5011 transitions. [2023-11-29 01:40:28,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-29 01:40:28,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:28,608 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:40:28,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:40:28,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:28,808 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:40:28,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:28,809 INFO L85 PathProgramCache]: Analyzing trace with hash -374754071, now seen corresponding path program 1 times [2023-11-29 01:40:28,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:28,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91275544] [2023-11-29 01:40:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:28,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:40:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:40:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:40:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:40:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:40:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:40:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:40:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:40:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:40:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:40:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:40:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:40:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 01:40:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 01:40:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:40:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:40:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:40:31,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:31,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91275544] [2023-11-29 01:40:31,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91275544] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:31,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429309861] [2023-11-29 01:40:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:31,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:31,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:31,758 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:31,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:40:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:34,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 3184 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:40:34,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:40:34,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:40:34,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429309861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:40:34,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:34,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-11-29 01:40:34,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376270010] [2023-11-29 01:40:34,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:40:34,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:40:34,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:34,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:40:34,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:40:34,688 INFO L87 Difference]: Start difference. First operand 3409 states and 5011 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:40:39,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:40:43,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:40:47,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:40:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:40:48,065 INFO L93 Difference]: Finished difference Result 6823 states and 10152 transitions. [2023-11-29 01:40:48,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:40:48,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2023-11-29 01:40:48,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:40:48,080 INFO L225 Difference]: With dead ends: 6823 [2023-11-29 01:40:48,080 INFO L226 Difference]: Without dead ends: 3424 [2023-11-29 01:40:48,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:40:48,094 INFO L413 NwaCegarLoop]: 1326 mSDtfsCounter, 1 mSDsluCounter, 2647 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:40:48,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3973 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 371 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2023-11-29 01:40:48,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2023-11-29 01:40:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 3419. [2023-11-29 01:40:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 2391 states have (on average 1.3358427436219156) internal successors, (3194), 2446 states have internal predecessors, (3194), 845 states have call successors, (845), 156 states have call predecessors, (845), 182 states have return successors, (982), 836 states have call predecessors, (982), 843 states have call successors, (982) [2023-11-29 01:40:48,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 5021 transitions. [2023-11-29 01:40:48,318 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 5021 transitions. Word has length 152 [2023-11-29 01:40:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:40:48,318 INFO L495 AbstractCegarLoop]: Abstraction has 3419 states and 5021 transitions. [2023-11-29 01:40:48,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:40:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 5021 transitions. [2023-11-29 01:40:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 01:40:48,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:40:48,321 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:40:48,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:40:48,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:48,521 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:40:48,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:40:48,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1268712611, now seen corresponding path program 1 times [2023-11-29 01:40:48,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:40:48,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567884597] [2023-11-29 01:40:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:48,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:40:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:40:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:40:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:40:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:40:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:40:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:40:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:40:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:40:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:40:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:40:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:40:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:40:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 01:40:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 01:40:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:40:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:40:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:40:51,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:40:51,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567884597] [2023-11-29 01:40:51,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567884597] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:40:51,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86426216] [2023-11-29 01:40:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:40:51,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:40:51,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:40:51,515 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:40:51,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:40:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:40:54,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 3190 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:40:54,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:40:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:40:54,399 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:40:54,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86426216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:40:54,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:40:54,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2023-11-29 01:40:54,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039894026] [2023-11-29 01:40:54,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:40:54,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:40:54,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:40:54,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:40:54,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:40:54,401 INFO L87 Difference]: Start difference. First operand 3419 states and 5021 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:40:59,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:03,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:03,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:03,786 INFO L93 Difference]: Finished difference Result 6828 states and 10152 transitions. [2023-11-29 01:41:03,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:41:03,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2023-11-29 01:41:03,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:03,796 INFO L225 Difference]: With dead ends: 6828 [2023-11-29 01:41:03,796 INFO L226 Difference]: Without dead ends: 3419 [2023-11-29 01:41:03,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:41:03,808 INFO L413 NwaCegarLoop]: 1324 mSDtfsCounter, 2 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:03,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2642 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 249 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2023-11-29 01:41:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2023-11-29 01:41:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3419. [2023-11-29 01:41:04,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 2391 states have (on average 1.3337515683814303) internal successors, (3189), 2446 states have internal predecessors, (3189), 845 states have call successors, (845), 156 states have call predecessors, (845), 182 states have return successors, (982), 836 states have call predecessors, (982), 843 states have call successors, (982) [2023-11-29 01:41:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 5016 transitions. [2023-11-29 01:41:04,043 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 5016 transitions. Word has length 153 [2023-11-29 01:41:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:04,043 INFO L495 AbstractCegarLoop]: Abstraction has 3419 states and 5016 transitions. [2023-11-29 01:41:04,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:41:04,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 5016 transitions. [2023-11-29 01:41:04,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 01:41:04,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:04,046 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:41:04,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:41:04,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:04,247 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:04,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:04,247 INFO L85 PathProgramCache]: Analyzing trace with hash -39355830, now seen corresponding path program 1 times [2023-11-29 01:41:04,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:04,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027191950] [2023-11-29 01:41:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:04,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:06,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:41:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:06,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:41:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:06,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:41:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:41:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:41:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:41:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:41:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:41:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:41:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:41:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:41:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:41:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 01:41:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 01:41:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:41:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:41:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:41:07,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:07,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027191950] [2023-11-29 01:41:07,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027191950] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:41:07,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87615407] [2023-11-29 01:41:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:07,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:07,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:41:07,199 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:41:07,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:41:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:10,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 3192 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 01:41:10,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:41:10,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:41:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87615407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:10,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:41:10,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 11 [2023-11-29 01:41:10,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734632681] [2023-11-29 01:41:10,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:10,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:41:10,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:10,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:41:10,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:41:10,500 INFO L87 Difference]: Start difference. First operand 3419 states and 5016 transitions. Second operand has 9 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:41:19,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:23,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:27,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:31,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:35,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:39,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:43,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:47,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:41:47,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:41:47,268 INFO L93 Difference]: Finished difference Result 6648 states and 9877 transitions. [2023-11-29 01:41:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:41:47,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2023-11-29 01:41:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:41:47,279 INFO L225 Difference]: With dead ends: 6648 [2023-11-29 01:41:47,279 INFO L226 Difference]: Without dead ends: 3239 [2023-11-29 01:41:47,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:41:47,289 INFO L413 NwaCegarLoop]: 1329 mSDtfsCounter, 3 mSDsluCounter, 9285 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10614 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:41:47,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10614 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1007 Invalid, 7 Unknown, 0 Unchecked, 36.5s Time] [2023-11-29 01:41:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2023-11-29 01:41:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 3233. [2023-11-29 01:41:47,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2242 states have (on average 1.331400535236396) internal successors, (2985), 2289 states have internal predecessors, (2985), 809 states have call successors, (809), 156 states have call predecessors, (809), 181 states have return successors, (947), 805 states have call predecessors, (947), 807 states have call successors, (947) [2023-11-29 01:41:47,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 4741 transitions. [2023-11-29 01:41:47,545 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 4741 transitions. Word has length 154 [2023-11-29 01:41:47,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:41:47,546 INFO L495 AbstractCegarLoop]: Abstraction has 3233 states and 4741 transitions. [2023-11-29 01:41:47,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 15.0) internal successors, (105), 6 states have internal predecessors, (105), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:41:47,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 4741 transitions. [2023-11-29 01:41:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 01:41:47,548 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:41:47,549 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:41:47,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 01:41:47,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:41:47,750 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:41:47,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:41:47,750 INFO L85 PathProgramCache]: Analyzing trace with hash -513381813, now seen corresponding path program 1 times [2023-11-29 01:41:47,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:41:47,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645235103] [2023-11-29 01:41:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:41:47,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:41:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:41:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:41:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:41:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:41:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:41:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:41:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:41:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:41:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:41:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:41:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:41:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:41:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 01:41:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 01:41:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:41:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:41:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:41:50,531 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:41:50,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:41:50,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645235103] [2023-11-29 01:41:50,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645235103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:41:50,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:41:50,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:41:50,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320074294] [2023-11-29 01:41:50,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:41:50,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:41:50,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:41:50,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:41:50,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:41:50,533 INFO L87 Difference]: Start difference. First operand 3233 states and 4741 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 01:41:57,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:01,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:05,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:09,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:10,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:10,573 INFO L93 Difference]: Finished difference Result 6612 states and 9855 transitions. [2023-11-29 01:42:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:42:10,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 154 [2023-11-29 01:42:10,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:10,584 INFO L225 Difference]: With dead ends: 6612 [2023-11-29 01:42:10,584 INFO L226 Difference]: Without dead ends: 3389 [2023-11-29 01:42:10,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:42:10,594 INFO L413 NwaCegarLoop]: 1119 mSDtfsCounter, 785 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 644 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 1905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:10,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 2648 Invalid, 1905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 1257 Invalid, 4 Unknown, 0 Unchecked, 19.7s Time] [2023-11-29 01:42:10,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3389 states. [2023-11-29 01:42:10,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3389 to 3238. [2023-11-29 01:42:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 2246 states have (on average 1.3308103294746216) internal successors, (2989), 2293 states have internal predecessors, (2989), 809 states have call successors, (809), 156 states have call predecessors, (809), 182 states have return successors, (949), 806 states have call predecessors, (949), 807 states have call successors, (949) [2023-11-29 01:42:10,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4747 transitions. [2023-11-29 01:42:10,812 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4747 transitions. Word has length 154 [2023-11-29 01:42:10,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:10,813 INFO L495 AbstractCegarLoop]: Abstraction has 3238 states and 4747 transitions. [2023-11-29 01:42:10,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 01:42:10,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4747 transitions. [2023-11-29 01:42:10,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 01:42:10,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:10,816 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:42:10,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 01:42:10,816 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:42:10,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1830562896, now seen corresponding path program 1 times [2023-11-29 01:42:10,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:10,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891185941] [2023-11-29 01:42:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:10,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:42:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:42:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:42:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:42:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:42:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:42:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:42:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:42:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:42:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:42:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:42:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:42:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 01:42:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 01:42:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:42:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:42:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:42:13,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:13,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891185941] [2023-11-29 01:42:13,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891185941] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:42:13,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988310546] [2023-11-29 01:42:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:13,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:13,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:13,508 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:13,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:42:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:16,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 3216 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:42:16,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 01:42:16,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:42:16,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988310546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:42:16,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:42:16,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-11-29 01:42:16,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640386571] [2023-11-29 01:42:16,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:42:16,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:42:16,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:16,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:42:16,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:42:16,572 INFO L87 Difference]: Start difference. First operand 3238 states and 4747 transitions. Second operand has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:42:23,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:27,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:31,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:35,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:39,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:43,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:42:43,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:43,285 INFO L93 Difference]: Finished difference Result 6643 states and 9854 transitions. [2023-11-29 01:42:43,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:42:43,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2023-11-29 01:42:43,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:43,297 INFO L225 Difference]: With dead ends: 6643 [2023-11-29 01:42:43,297 INFO L226 Difference]: Without dead ends: 3415 [2023-11-29 01:42:43,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:42:43,310 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 67 mSDsluCounter, 6546 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 7860 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:43,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 7860 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 821 Invalid, 6 Unknown, 0 Unchecked, 26.4s Time] [2023-11-29 01:42:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2023-11-29 01:42:43,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 3253. [2023-11-29 01:42:43,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 2258 states have (on average 1.329052258635961) internal successors, (3001), 2305 states have internal predecessors, (3001), 809 states have call successors, (809), 156 states have call predecessors, (809), 185 states have return successors, (964), 809 states have call predecessors, (964), 807 states have call successors, (964) [2023-11-29 01:42:43,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 4774 transitions. [2023-11-29 01:42:43,575 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 4774 transitions. Word has length 155 [2023-11-29 01:42:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:43,576 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 4774 transitions. [2023-11-29 01:42:43,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:42:43,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 4774 transitions. [2023-11-29 01:42:43,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 01:42:43,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:43,579 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:42:43,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:42:43,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:42:43,780 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:42:43,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash -846953384, now seen corresponding path program 1 times [2023-11-29 01:42:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112504135] [2023-11-29 01:42:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:43,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:42:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:42:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:42:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:42:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:42:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:42:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:42:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:42:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:42:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:42:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 01:42:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:42:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 01:42:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 01:42:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:42:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:42:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:42:46,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:46,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112504135] [2023-11-29 01:42:46,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112504135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:42:46,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796821083] [2023-11-29 01:42:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:46,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:46,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:46,248 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:46,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:42:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:49,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 3217 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:42:49,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 01:42:49,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:42:49,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796821083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:42:49,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:42:49,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2023-11-29 01:42:49,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557987974] [2023-11-29 01:42:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:42:49,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:42:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:49,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:42:49,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:42:49,384 INFO L87 Difference]: Start difference. First operand 3253 states and 4774 transitions. Second operand has 7 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:42:56,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:00,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:04,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:08,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:12,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:16,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:16,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:43:16,587 INFO L93 Difference]: Finished difference Result 6697 states and 9935 transitions. [2023-11-29 01:43:16,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:43:16,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 156 [2023-11-29 01:43:16,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:43:16,600 INFO L225 Difference]: With dead ends: 6697 [2023-11-29 01:43:16,601 INFO L226 Difference]: Without dead ends: 3454 [2023-11-29 01:43:16,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:43:16,609 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 74 mSDsluCounter, 6547 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 7861 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:43:16,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 7861 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 820 Invalid, 6 Unknown, 0 Unchecked, 26.9s Time] [2023-11-29 01:43:16,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2023-11-29 01:43:16,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3259. [2023-11-29 01:43:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 2264 states have (on average 1.3281802120141342) internal successors, (3007), 2308 states have internal predecessors, (3007), 809 states have call successors, (809), 156 states have call predecessors, (809), 185 states have return successors, (964), 812 states have call predecessors, (964), 807 states have call successors, (964) [2023-11-29 01:43:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 4780 transitions. [2023-11-29 01:43:16,842 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 4780 transitions. Word has length 156 [2023-11-29 01:43:16,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:43:16,842 INFO L495 AbstractCegarLoop]: Abstraction has 3259 states and 4780 transitions. [2023-11-29 01:43:16,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 01:43:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 4780 transitions. [2023-11-29 01:43:16,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 01:43:16,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:16,845 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:43:16,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 01:43:17,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:43:17,046 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:43:17,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:17,046 INFO L85 PathProgramCache]: Analyzing trace with hash 555396066, now seen corresponding path program 1 times [2023-11-29 01:43:17,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:17,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715720074] [2023-11-29 01:43:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:17,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:43:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:43:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:43:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:43:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:43:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:43:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:43:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:43:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:43:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:43:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:43:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 01:43:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 01:43:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 01:43:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:43:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:43:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:43:19,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:19,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715720074] [2023-11-29 01:43:19,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715720074] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:43:19,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12890185] [2023-11-29 01:43:19,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:19,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:43:19,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:43:19,586 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:43:19,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:43:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:22,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:43:22,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:43:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:43:23,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:43:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:43:23,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12890185] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:43:23,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:43:23,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2023-11-29 01:43:23,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975852753] [2023-11-29 01:43:23,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:43:23,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:43:23,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:23,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:43:23,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:43:23,075 INFO L87 Difference]: Start difference. First operand 3259 states and 4780 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-29 01:43:31,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:35,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:39,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:43,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:47,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:51,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:55,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:59,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:02,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:44:02,563 INFO L93 Difference]: Finished difference Result 6668 states and 9942 transitions. [2023-11-29 01:44:02,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:44:02,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2023-11-29 01:44:02,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:44:02,573 INFO L225 Difference]: With dead ends: 6668 [2023-11-29 01:44:02,574 INFO L226 Difference]: Without dead ends: 3419 [2023-11-29 01:44:02,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:44:02,582 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 417 mSDsluCounter, 3965 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 282 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 5092 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:44:02,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 5092 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 2720 Invalid, 8 Unknown, 0 Unchecked, 39.1s Time] [2023-11-29 01:44:02,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2023-11-29 01:44:02,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3268. [2023-11-29 01:44:02,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 2273 states have (on average 1.3268807743070832) internal successors, (3016), 2317 states have internal predecessors, (3016), 809 states have call successors, (809), 156 states have call predecessors, (809), 185 states have return successors, (964), 812 states have call predecessors, (964), 807 states have call successors, (964) [2023-11-29 01:44:02,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 4789 transitions. [2023-11-29 01:44:02,813 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 4789 transitions. Word has length 157 [2023-11-29 01:44:02,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:44:02,814 INFO L495 AbstractCegarLoop]: Abstraction has 3268 states and 4789 transitions. [2023-11-29 01:44:02,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-29 01:44:02,814 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 4789 transitions. [2023-11-29 01:44:02,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-29 01:44:02,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:44:02,816 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:44:02,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:44:03,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:03,017 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:44:03,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:44:03,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1434911207, now seen corresponding path program 2 times [2023-11-29 01:44:03,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:44:03,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429726890] [2023-11-29 01:44:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:44:03,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:44:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:44:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:44:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:44:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:44:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:44:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:44:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:44:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:44:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:44:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:44:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:44:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 01:44:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 01:44:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 01:44:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:44:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:44:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:44:05,593 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:44:05,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:44:05,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429726890] [2023-11-29 01:44:05,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429726890] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:44:05,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929410073] [2023-11-29 01:44:05,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:44:05,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:44:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:44:05,595 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:44:05,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:44:09,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:44:09,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:44:09,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 3264 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:44:09,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:44:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:44:09,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:44:09,409 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:44:09,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929410073] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:44:09,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:44:09,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 18 [2023-11-29 01:44:09,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33150224] [2023-11-29 01:44:09,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:44:09,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:44:09,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:44:09,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:44:09,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:44:09,411 INFO L87 Difference]: Start difference. First operand 3268 states and 4789 transitions. Second operand has 18 states, 18 states have (on average 7.388888888888889) internal successors, (133), 16 states have internal predecessors, (133), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-29 01:44:20,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:24,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:28,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:32,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:36,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:40,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:44,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:48,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:52,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:56,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:00,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:04,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:08,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:12,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:16,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:20,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:24,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:28,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:28,519 INFO L93 Difference]: Finished difference Result 6695 states and 9978 transitions. [2023-11-29 01:45:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:45:28,520 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.388888888888889) internal successors, (133), 16 states have internal predecessors, (133), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2023-11-29 01:45:28,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:28,529 INFO L225 Difference]: With dead ends: 6695 [2023-11-29 01:45:28,529 INFO L226 Difference]: Without dead ends: 3437 [2023-11-29 01:45:28,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=154, Invalid=308, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:45:28,537 INFO L413 NwaCegarLoop]: 1138 mSDtfsCounter, 785 mSDsluCounter, 6456 mSDsCounter, 0 mSdLazyCounter, 4002 mSolverCounterSat, 635 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 7594 SdHoareTripleChecker+Invalid, 4654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 4002 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:28,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 7594 Invalid, 4654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 4002 Invalid, 17 Unknown, 0 Unchecked, 77.9s Time] [2023-11-29 01:45:28,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2023-11-29 01:45:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 3286. [2023-11-29 01:45:28,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 2291 states have (on average 1.3243125272806635) internal successors, (3034), 2335 states have internal predecessors, (3034), 809 states have call successors, (809), 156 states have call predecessors, (809), 185 states have return successors, (964), 812 states have call predecessors, (964), 807 states have call successors, (964) [2023-11-29 01:45:28,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4807 transitions. [2023-11-29 01:45:28,752 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4807 transitions. Word has length 160 [2023-11-29 01:45:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:28,752 INFO L495 AbstractCegarLoop]: Abstraction has 3286 states and 4807 transitions. [2023-11-29 01:45:28,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.388888888888889) internal successors, (133), 16 states have internal predecessors, (133), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-29 01:45:28,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4807 transitions. [2023-11-29 01:45:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-29 01:45:28,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:28,755 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:45:28,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:45:28,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:45:28,955 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:45:28,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:28,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1942669347, now seen corresponding path program 1 times [2023-11-29 01:45:28,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:28,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776443564] [2023-11-29 01:45:28,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:28,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:45:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:45:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:45:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:45:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:45:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:45:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:45:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:45:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:45:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:45:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:45:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 01:45:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 01:45:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 01:45:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:45:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:45:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 01:45:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 01:45:31,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:31,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776443564] [2023-11-29 01:45:31,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776443564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:45:31,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:45:31,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:45:31,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257228482] [2023-11-29 01:45:31,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:45:31,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:45:31,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:31,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:45:31,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:45:31,622 INFO L87 Difference]: Start difference. First operand 3286 states and 4807 transitions. Second operand has 9 states, 8 states have (on average 14.5) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 01:45:40,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:44,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:48,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:52,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:56,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:00,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:04,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:08,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:11,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:46:11,941 INFO L93 Difference]: Finished difference Result 6990 states and 10567 transitions. [2023-11-29 01:46:11,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:46:11,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2023-11-29 01:46:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:46:11,952 INFO L225 Difference]: With dead ends: 6990 [2023-11-29 01:46:11,952 INFO L226 Difference]: Without dead ends: 3714 [2023-11-29 01:46:11,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:46:11,960 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 754 mSDsluCounter, 5595 mSDsCounter, 0 mSdLazyCounter, 3840 mSolverCounterSat, 617 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 6767 SdHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 3840 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:46:11,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 6767 Invalid, 4465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 3840 Invalid, 8 Unknown, 0 Unchecked, 39.9s Time] [2023-11-29 01:46:11,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3714 states. [2023-11-29 01:46:12,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3714 to 3292. [2023-11-29 01:46:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 2297 states have (on average 1.3234653896386592) internal successors, (3040), 2338 states have internal predecessors, (3040), 809 states have call successors, (809), 156 states have call predecessors, (809), 185 states have return successors, (964), 815 states have call predecessors, (964), 807 states have call successors, (964) [2023-11-29 01:46:12,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 4813 transitions. [2023-11-29 01:46:12,191 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 4813 transitions. Word has length 171 [2023-11-29 01:46:12,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:46:12,191 INFO L495 AbstractCegarLoop]: Abstraction has 3292 states and 4813 transitions. [2023-11-29 01:46:12,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.5) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 01:46:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 4813 transitions. [2023-11-29 01:46:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-29 01:46:12,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:46:12,194 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:46:12,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 01:46:12,194 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:46:12,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:46:12,194 INFO L85 PathProgramCache]: Analyzing trace with hash -416637662, now seen corresponding path program 1 times [2023-11-29 01:46:12,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:46:12,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406958549] [2023-11-29 01:46:12,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:12,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:46:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:46:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:46:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:46:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:46:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:46:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:46:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:46:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:46:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:46:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:46:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:46:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 01:46:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 01:46:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 01:46:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:46:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:46:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-29 01:46:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-29 01:46:14,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:46:14,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406958549] [2023-11-29 01:46:14,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406958549] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:46:14,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372936363] [2023-11-29 01:46:14,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:14,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:14,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:46:14,526 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:46:14,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:46:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:17,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 3462 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:46:17,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:46:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:46:17,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:46:17,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372936363] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:46:17,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:46:17,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2023-11-29 01:46:17,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303681624] [2023-11-29 01:46:17,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:46:17,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:46:17,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:46:17,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:46:17,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:46:17,673 INFO L87 Difference]: Start difference. First operand 3292 states and 4813 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 01:46:23,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:27,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:31,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:35,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:35,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:46:35,544 INFO L93 Difference]: Finished difference Result 6589 states and 9743 transitions. [2023-11-29 01:46:35,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:46:35,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2023-11-29 01:46:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:46:35,557 INFO L225 Difference]: With dead ends: 6589 [2023-11-29 01:46:35,557 INFO L226 Difference]: Without dead ends: 3307 [2023-11-29 01:46:35,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:46:35,566 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 9 mSDsluCounter, 3968 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5293 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:46:35,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5293 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 502 Invalid, 4 Unknown, 0 Unchecked, 17.6s Time] [2023-11-29 01:46:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2023-11-29 01:46:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3301. [2023-11-29 01:46:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3301 states, 2306 states have (on average 1.3222029488291414) internal successors, (3049), 2347 states have internal predecessors, (3049), 809 states have call successors, (809), 156 states have call predecessors, (809), 185 states have return successors, (964), 815 states have call predecessors, (964), 807 states have call successors, (964) [2023-11-29 01:46:35,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3301 states to 3301 states and 4822 transitions. [2023-11-29 01:46:35,819 INFO L78 Accepts]: Start accepts. Automaton has 3301 states and 4822 transitions. Word has length 171 [2023-11-29 01:46:35,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:46:35,819 INFO L495 AbstractCegarLoop]: Abstraction has 3301 states and 4822 transitions. [2023-11-29 01:46:35,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-29 01:46:35,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3301 states and 4822 transitions. [2023-11-29 01:46:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 01:46:35,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:46:35,821 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 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] [2023-11-29 01:46:35,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 01:46:36,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:36,021 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:46:36,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:46:36,022 INFO L85 PathProgramCache]: Analyzing trace with hash 151648633, now seen corresponding path program 3 times [2023-11-29 01:46:36,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:46:36,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697257656] [2023-11-29 01:46:36,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:36,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:46:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:46:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-29 01:46:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:46:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:46:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 01:46:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-29 01:46:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 01:46:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 01:46:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 01:46:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 01:46:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:46:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 01:46:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 01:46:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-29 01:46:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:46:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 01:46:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:46:39,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:46:39,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697257656] [2023-11-29 01:46:39,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697257656] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:46:39,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673943976] [2023-11-29 01:46:39,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:46:39,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:46:39,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:46:39,174 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:46:39,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:46:59,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-11-29 01:46:59,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:46:59,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 3354 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 01:46:59,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:46:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 4 proven. 55 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:46:59,377 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:47:00,147 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-29 01:47:00,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673943976] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:47:00,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:47:00,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 36 [2023-11-29 01:47:00,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439917635] [2023-11-29 01:47:00,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:47:00,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 01:47:00,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:47:00,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 01:47:00,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=930, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 01:47:00,150 INFO L87 Difference]: Start difference. First operand 3301 states and 4822 transitions. Second operand has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 34 states have internal predecessors, (151), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-29 01:47:22,727 WARN L293 SmtUtils]: Spent 15.39s on a formula simplification. DAG size of input: 77 DAG size of output: 58 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:47:37,648 WARN L293 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 70 DAG size of output: 53 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:48:08,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:12,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:16,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:19,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:23,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:27,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:31,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:35,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:39,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:43,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:47,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:51,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:55,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:59,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:03,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:12,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:49:12,306 INFO L93 Difference]: Finished difference Result 6779 states and 10080 transitions. [2023-11-29 01:49:12,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 01:49:12,307 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 34 states have internal predecessors, (151), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 166 [2023-11-29 01:49:12,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:49:12,317 INFO L225 Difference]: With dead ends: 6779 [2023-11-29 01:49:12,317 INFO L226 Difference]: Without dead ends: 3488 [2023-11-29 01:49:12,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 54.7s TimeCoverageRelationStatistics Valid=670, Invalid=1400, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 01:49:12,325 INFO L413 NwaCegarLoop]: 1114 mSDtfsCounter, 785 mSDsluCounter, 12129 mSDsCounter, 0 mSdLazyCounter, 7290 mSolverCounterSat, 643 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 13243 SdHoareTripleChecker+Invalid, 7947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 7290 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:49:12,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 13243 Invalid, 7947 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [643 Valid, 7290 Invalid, 14 Unknown, 0 Unchecked, 78.0s Time] [2023-11-29 01:49:12,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2023-11-29 01:49:12,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3337. [2023-11-29 01:49:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3337 states, 2342 states have (on average 1.3172502134927413) internal successors, (3085), 2383 states have internal predecessors, (3085), 809 states have call successors, (809), 156 states have call predecessors, (809), 185 states have return successors, (964), 815 states have call predecessors, (964), 807 states have call successors, (964) [2023-11-29 01:49:12,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 4858 transitions. [2023-11-29 01:49:12,570 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 4858 transitions. Word has length 166 [2023-11-29 01:49:12,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:49:12,570 INFO L495 AbstractCegarLoop]: Abstraction has 3337 states and 4858 transitions. [2023-11-29 01:49:12,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.194444444444445) internal successors, (151), 34 states have internal predecessors, (151), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-29 01:49:12,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 4858 transitions. [2023-11-29 01:49:12,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-29 01:49:12,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:49:12,571 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 01:49:12,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:49:12,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 01:49:12,772 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:49:12,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:49:12,772 INFO L85 PathProgramCache]: Analyzing trace with hash 258263980, now seen corresponding path program 1 times [2023-11-29 01:49:12,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:49:12,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340918453] [2023-11-29 01:49:12,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:49:12,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:49:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:49:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:49:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:49:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-29 01:49:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:49:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 01:49:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-29 01:49:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 01:49:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-29 01:49:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 01:49:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 01:49:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 01:49:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 01:49:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 01:49:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 01:49:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 01:49:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-29 01:49:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 01:49:15,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:49:15,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340918453] [2023-11-29 01:49:15,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340918453] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:49:15,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567089674] [2023-11-29 01:49:15,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:49:15,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:49:15,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:49:15,141 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:49:15,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dca4448e-cc41-408d-92eb-fba5045729d0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:49:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:18,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 3329 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:49:18,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:49:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 01:49:18,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:49:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 01:49:18,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567089674] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:49:18,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:49:18,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2023-11-29 01:49:18,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257746627] [2023-11-29 01:49:18,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:49:18,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:49:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:49:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:49:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:49:18,439 INFO L87 Difference]: Start difference. First operand 3337 states and 4858 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 7 states have internal predecessors, (134), 5 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19)