./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/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_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu --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 0.2.3-dev-9bd2c7f [2023-11-19 07:36:38,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:38,374 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:36:38,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:38,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:38,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:38,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:38,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:38,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:38,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:38,435 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:38,435 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:38,436 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:38,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:38,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:38,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:36:38,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:38,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:38,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:38,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:38,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:38,442 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:38,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:38,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:38,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:38,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:38,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:38,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:38,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:38,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:36:38,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:36:38,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:38,447 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:38,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:38,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:38,448 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:38,449 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_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2023-11-19 07:36:38,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:38,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:38,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:38,828 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:38,829 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:38,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-19 07:36:42,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:36:43,428 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:36:43,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-19 07:36:43,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/data/9f15a270a/d953f2a8ae32415d9c5a8c2b8057b781/FLAGddae81c07 [2023-11-19 07:36:43,519 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/data/9f15a270a/d953f2a8ae32415d9c5a8c2b8057b781 [2023-11-19 07:36:43,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:36:43,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:36:43,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:43,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:36:43,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:36:43,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:43" (1/1) ... [2023-11-19 07:36:43,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fcd3526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:43, skipping insertion in model container [2023-11-19 07:36:43,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:43" (1/1) ... [2023-11-19 07:36:43,803 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:45,986 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_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2023-11-19 07:36:46,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:46,154 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:46,314 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] [2023-11-19 07:36:46,316 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] [2023-11-19 07:36:46,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6248] [2023-11-19 07:36:46,319 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] [2023-11-19 07:36:46,320 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] [2023-11-19 07:36:46,321 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] [2023-11-19 07:36:46,596 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_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2023-11-19 07:36:46,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:46,698 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:46,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46 WrapperNode [2023-11-19 07:36:46,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:46,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:46,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:46,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:46,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:46,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:46,977 INFO L138 Inliner]: procedures = 177, calls = 1697, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 4036 [2023-11-19 07:36:46,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:46,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:46,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:46,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:46,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:46,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:47,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:47,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:47,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:47,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:47,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:47,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:47,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:47,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:47,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:47,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:47,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (1/1) ... [2023-11-19 07:36:47,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:47,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:47,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:47,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ce42714-5fa9-47e0-bb70-47a6d6a03d38/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 07:36:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 07:36:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-19 07:36:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-19 07:36:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 07:36:47,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 07:36:47,384 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2023-11-19 07:36:47,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2023-11-19 07:36:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:36:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-19 07:36:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-19 07:36:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-19 07:36:47,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-11-19 07:36:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:36:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:36:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-19 07:36:47,387 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-19 07:36:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:36:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2023-11-19 07:36:47,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2023-11-19 07:36:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-19 07:36:47,389 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-19 07:36:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-19 07:36:47,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-19 07:36:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:36:47,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:36:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 07:36:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 07:36:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:36:47,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:36:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 07:36:47,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 07:36:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-19 07:36:47,392 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-19 07:36:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:36:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:36:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2023-11-19 07:36:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2023-11-19 07:36:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 07:36:47,393 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 07:36:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2023-11-19 07:36:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2023-11-19 07:36:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:36:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:36:47,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:36:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2023-11-19 07:36:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2023-11-19 07:36:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-19 07:36:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-19 07:36:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-19 07:36:47,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-19 07:36:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2023-11-19 07:36:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2023-11-19 07:36:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2023-11-19 07:36:47,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2023-11-19 07:36:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2023-11-19 07:36:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2023-11-19 07:36:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-19 07:36:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-19 07:36:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:36:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:36:47,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:36:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2023-11-19 07:36:47,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2023-11-19 07:36:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:36:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:36:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-19 07:36:47,400 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-19 07:36:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 07:36:47,401 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 07:36:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:36:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:36:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:36:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 07:36:47,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 07:36:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:36:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:36:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-19 07:36:47,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-19 07:36:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:36:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:36:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2023-11-19 07:36:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2023-11-19 07:36:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:36:47,404 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:36:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 07:36:47,405 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 07:36:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-19 07:36:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-19 07:36:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 07:36:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 07:36:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:36:47,406 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:36:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:36:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:36:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 07:36:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 07:36:47,407 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2023-11-19 07:36:47,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2023-11-19 07:36:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 07:36:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 07:36:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 07:36:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 07:36:47,408 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2023-11-19 07:36:47,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2023-11-19 07:36:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 07:36:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 07:36:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-19 07:36:47,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-19 07:36:47,409 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2023-11-19 07:36:47,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2023-11-19 07:36:47,410 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-19 07:36:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-19 07:36:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:36:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-19 07:36:47,411 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-19 07:36:47,411 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2023-11-19 07:36:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2023-11-19 07:36:47,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-19 07:36:47,412 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-19 07:36:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2023-11-19 07:36:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2023-11-19 07:36:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:36:47,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:47,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:48,138 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:48,143 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:48,425 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:36:48,596 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2023-11-19 07:36:48,597 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2023-11-19 07:36:49,095 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:36:50,908 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2023-11-19 07:36:50,909 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2023-11-19 07:36:51,442 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-19 07:36:51,475 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:36:51,477 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:36:54,415 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume !false; [2023-11-19 07:36:54,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume false; [2023-11-19 07:36:54,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2023-11-19 07:36:54,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2023-11-19 07:36:54,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2023-11-19 07:36:55,142 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:36:56,689 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2023-11-19 07:36:56,689 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2023-11-19 07:36:56,782 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:56,804 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:56,805 INFO L302 CfgBuilder]: Removed 38 assume(true) statements. [2023-11-19 07:36:56,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:56 BoogieIcfgContainer [2023-11-19 07:36:56,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:56,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:56,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:56,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:56,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:43" (1/3) ... [2023-11-19 07:36:56,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b41513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:56, skipping insertion in model container [2023-11-19 07:36:56,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:46" (2/3) ... [2023-11-19 07:36:56,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b41513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:56, skipping insertion in model container [2023-11-19 07:36:56,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:56" (3/3) ... [2023-11-19 07:36:56,827 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2023-11-19 07:36:56,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:56,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:36:56,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:56,940 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;@5c6e9c4a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:56,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:36:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 1198 states, 875 states have (on average 1.4045714285714286) internal successors, (1229), 899 states have internal predecessors, (1229), 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) [2023-11-19 07:36:56,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 07:36:56,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:36:56,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:56,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:36:56,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:56,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1300228462, now seen corresponding path program 1 times [2023-11-19 07:36:56,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:56,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329139440] [2023-11-19 07:36:56,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:56,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:00,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:01,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:01,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329139440] [2023-11-19 07:37:01,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329139440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:01,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:01,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:01,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215967478] [2023-11-19 07:37:01,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:01,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:37:01,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:01,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:37:01,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:37:01,094 INFO L87 Difference]: Start difference. First operand has 1198 states, 875 states have (on average 1.4045714285714286) internal successors, (1229), 899 states have internal predecessors, (1229), 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 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-19 07:37:01,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:01,452 INFO L93 Difference]: Finished difference Result 2386 states and 3564 transitions. [2023-11-19 07:37:01,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:37:01,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 16 [2023-11-19 07:37:01,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:01,490 INFO L225 Difference]: With dead ends: 2386 [2023-11-19 07:37:01,491 INFO L226 Difference]: Without dead ends: 1191 [2023-11-19 07:37:01,509 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 [2023-11-19 07:37:01,514 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 27 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 6626 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:01,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 6626 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:01,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2023-11-19 07:37:01,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1186. [2023-11-19 07:37:01,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 866 states have (on average 1.297921478060046) internal successors, (1124), 882 states have internal predecessors, (1124), 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) [2023-11-19 07:37:01,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1651 transitions. [2023-11-19 07:37:01,766 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1651 transitions. Word has length 16 [2023-11-19 07:37:01,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:01,766 INFO L495 AbstractCegarLoop]: Abstraction has 1186 states and 1651 transitions. [2023-11-19 07:37:01,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-11-19 07:37:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1651 transitions. [2023-11-19 07:37:01,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 07:37:01,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:01,770 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] [2023-11-19 07:37:01,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:01,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:01,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2014549656, now seen corresponding path program 1 times [2023-11-19 07:37:01,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:01,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817489611] [2023-11-19 07:37:01,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:01,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:05,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:05,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817489611] [2023-11-19 07:37:05,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817489611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:05,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:05,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:05,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727919629] [2023-11-19 07:37:05,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:05,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:05,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:05,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:05,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:05,167 INFO L87 Difference]: Start difference. First operand 1186 states and 1651 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-19 07:37:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:05,372 INFO L93 Difference]: Finished difference Result 3518 states and 4940 transitions. [2023-11-19 07:37:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:05,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 21 [2023-11-19 07:37:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:05,398 INFO L225 Difference]: With dead ends: 3518 [2023-11-19 07:37:05,399 INFO L226 Difference]: Without dead ends: 2350 [2023-11-19 07:37:05,410 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 [2023-11-19 07:37:05,412 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 1635 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:05,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1635 Valid, 3850 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:05,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2023-11-19 07:37:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2346. [2023-11-19 07:37:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2346 states, 1715 states have (on average 1.2985422740524781) internal successors, (2227), 1743 states have internal predecessors, (2227), 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) [2023-11-19 07:37:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 3286 transitions. [2023-11-19 07:37:05,634 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 3286 transitions. Word has length 21 [2023-11-19 07:37:05,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:05,634 INFO L495 AbstractCegarLoop]: Abstraction has 2346 states and 3286 transitions. [2023-11-19 07:37:05,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-19 07:37:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 3286 transitions. [2023-11-19 07:37:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 07:37:05,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:05,636 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] [2023-11-19 07:37:05,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:05,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:05,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:05,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1973966188, now seen corresponding path program 1 times [2023-11-19 07:37:05,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:05,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223967626] [2023-11-19 07:37:05,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:05,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:08,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:08,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223967626] [2023-11-19 07:37:08,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223967626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:08,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:08,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:08,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852295632] [2023-11-19 07:37:08,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:08,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:08,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:08,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:08,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:08,725 INFO L87 Difference]: Start difference. First operand 2346 states and 3286 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 07:37:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:09,048 INFO L93 Difference]: Finished difference Result 6999 states and 9885 transitions. [2023-11-19 07:37:09,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:09,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 22 [2023-11-19 07:37:09,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:09,102 INFO L225 Difference]: With dead ends: 6999 [2023-11-19 07:37:09,102 INFO L226 Difference]: Without dead ends: 4663 [2023-11-19 07:37:09,126 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 [2023-11-19 07:37:09,131 INFO L413 NwaCegarLoop]: 2119 mSDtfsCounter, 1634 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 3750 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:09,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 3750 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:37:09,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2023-11-19 07:37:09,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 4652. [2023-11-19 07:37:09,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4652 states, 3402 states have (on average 1.2986478542034097) internal successors, (4418), 3453 states have internal predecessors, (4418), 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) [2023-11-19 07:37:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 6560 transitions. [2023-11-19 07:37:09,527 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 6560 transitions. Word has length 22 [2023-11-19 07:37:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:09,529 INFO L495 AbstractCegarLoop]: Abstraction has 4652 states and 6560 transitions. [2023-11-19 07:37:09,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 07:37:09,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 6560 transitions. [2023-11-19 07:37:09,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 07:37:09,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:09,542 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:09,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:09,542 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:09,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:09,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1338026053, now seen corresponding path program 1 times [2023-11-19 07:37:09,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:09,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741601083] [2023-11-19 07:37:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:37:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-19 07:37:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:12,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:12,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741601083] [2023-11-19 07:37:12,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741601083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:12,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:12,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:37:12,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149554229] [2023-11-19 07:37:12,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:12,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:37:12,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:12,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:37:12,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:37:12,971 INFO L87 Difference]: Start difference. First operand 4652 states and 6560 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-19 07:37:15,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:37:17,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:37:19,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:37:24,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:37:24,044 INFO L93 Difference]: Finished difference Result 10360 states and 14840 transitions. [2023-11-19 07:37:24,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:37:24,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 60 [2023-11-19 07:37:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:37:24,094 INFO L225 Difference]: With dead ends: 10360 [2023-11-19 07:37:24,094 INFO L226 Difference]: Without dead ends: 5721 [2023-11-19 07:37:24,125 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 [2023-11-19 07:37:24,127 INFO L413 NwaCegarLoop]: 1490 mSDtfsCounter, 644 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 294 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 3548 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:37:24,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 3548 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 1153 Invalid, 3 Unknown, 0 Unchecked, 10.7s Time] [2023-11-19 07:37:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2023-11-19 07:37:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 4792. [2023-11-19 07:37:24,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4792 states, 3512 states have (on average 1.2958428246013667) internal successors, (4551), 3569 states have internal predecessors, (4551), 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) [2023-11-19 07:37:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 6774 transitions. [2023-11-19 07:37:24,482 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 6774 transitions. Word has length 60 [2023-11-19 07:37:24,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:37:24,483 INFO L495 AbstractCegarLoop]: Abstraction has 4792 states and 6774 transitions. [2023-11-19 07:37:24,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-19 07:37:24,483 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 6774 transitions. [2023-11-19 07:37:24,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 07:37:24,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:37:24,487 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, 1, 1, 1, 1, 1] [2023-11-19 07:37:24,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:24,489 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:37:24,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:24,489 INFO L85 PathProgramCache]: Analyzing trace with hash 440399288, now seen corresponding path program 1 times [2023-11-19 07:37:24,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:24,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548554312] [2023-11-19 07:37:24,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:24,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:37:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:27,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:37:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-19 07:37:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:37:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:37:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-19 07:37:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:37:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:37:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:28,146 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:37:28,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:28,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548554312] [2023-11-19 07:37:28,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548554312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:28,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:28,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:37:28,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877066610] [2023-11-19 07:37:28,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:28,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:37:28,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:28,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:37:28,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:37:28,150 INFO L87 Difference]: Start difference. First operand 4792 states and 6774 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8)