./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI --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 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:52:50,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:52:50,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-24 21:52:50,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:52:50,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:52:50,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:52:50,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:52:50,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:52:50,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:52:50,985 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:52:50,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:52:50,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:52:50,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:52:50,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:52:50,990 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:52:50,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:52:50,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:52:50,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:52:50,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:52:50,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:52:50,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:52:50,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:52:50,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:52:50,995 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:52:50,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:52:50,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:52:50,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:52:50,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:52:50,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:52:50,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:52:51,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:52:51,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:52:51,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:52:51,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:52:51,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:52:51,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:52:51,014 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:52:51,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:52:51,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:52:51,015 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_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a [2023-11-24 21:52:51,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:52:51,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:52:51,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:52:51,328 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:52:51,329 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:52:51,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2023-11-24 21:52:54,513 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:52:55,141 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:52:55,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2023-11-24 21:52:55,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/data/fe9f82abb/717cfc58f0cc4d49afaa7fe35341caff/FLAG4c6a1b8e7 [2023-11-24 21:52:55,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/data/fe9f82abb/717cfc58f0cc4d49afaa7fe35341caff [2023-11-24 21:52:55,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:52:55,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:52:55,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:52:55,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:52:55,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:52:55,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:52:55" (1/1) ... [2023-11-24 21:52:55,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d630515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:55, skipping insertion in model container [2023-11-24 21:52:55,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:52:55" (1/1) ... [2023-11-24 21:52:55,402 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:52:56,878 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_37034421-ae19-49bb-824b-516c53039a5e/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2023-11-24 21:52:56,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:52:56,998 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:52:57,137 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"); [4831-4837] [2023-11-24 21:52:57,139 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; " "btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4844-4850] [2023-11-24 21:52:57,141 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; " "btr %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4857-4864] [2023-11-24 21:52:57,144 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; " "incl %0": "+m" (v->counter)); [4894-4900] [2023-11-24 21:52:57,144 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; " "decl %0": "+m" (v->counter)); [4907-4913] [2023-11-24 21:52:57,243 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/work/current--X--drivers/net/can/usb/ems_usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/68_1/drivers/net/can/usb/ems_usb.c.common.c"), "i" (510), "i" (sizeof(struct bug_entry ))); [5717-5723] [2023-11-24 21:52:57,414 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_37034421-ae19-49bb-824b-516c53039a5e/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2023-11-24 21:52:57,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:52:57,720 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:52:57,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57 WrapperNode [2023-11-24 21:52:57,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:52:57,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:52:57,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:52:57,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:52:57,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:57,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:57,936 INFO L138 Inliner]: procedures = 133, calls = 778, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1558 [2023-11-24 21:52:57,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:52:57,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:52:57,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:52:57,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:52:57,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:57,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:57,965 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:58,240 INFO L175 MemorySlicer]: Split 337 memory accesses to 8 slices as follows [258, 2, 8, 3, 10, 8, 8, 40]. 77 percent of accesses are in the largest equivalence class. The 152 initializations are split as follows [86, 2, 8, 0, 0, 8, 8, 40]. The 91 writes are split as follows [91, 0, 0, 0, 0, 0, 0, 0]. [2023-11-24 21:52:58,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:58,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:58,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:58,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:58,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:58,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:58,424 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:52:58,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:52:58,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:52:58,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:52:58,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (1/1) ... [2023-11-24 21:52:58,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:52:58,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:52:58,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:52:58,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37034421-ae19-49bb-824b-516c53039a5e/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:52:58,511 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-24 21:52:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-24 21:52:58,512 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2023-11-24 21:52:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2023-11-24 21:52:58,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-24 21:52:58,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-24 21:52:58,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-24 21:52:58,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-24 21:52:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-24 21:52:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-24 21:52:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-24 21:52:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-24 21:52:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-24 21:52:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-24 21:52:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-24 21:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-24 21:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-24 21:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-24 21:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-24 21:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-24 21:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-24 21:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-24 21:52:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-24 21:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-24 21:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-24 21:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-24 21:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-24 21:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-24 21:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-24 21:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-24 21:52:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-24 21:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-24 21:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-24 21:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-24 21:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-24 21:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-24 21:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-24 21:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-24 21:52:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 21:52:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 21:52:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2023-11-24 21:52:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2023-11-24 21:52:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-24 21:52:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-24 21:52:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 21:52:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 21:52:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2023-11-24 21:52:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2023-11-24 21:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-11-24 21:52:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-11-24 21:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 21:52:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 21:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-11-24 21:52:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-11-24 21:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 21:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 21:52:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 21:52:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-24 21:52:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-24 21:52:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-24 21:52:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-24 21:52:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-24 21:52:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-24 21:52:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-24 21:52:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-24 21:52:58,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-24 21:52:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-24 21:52:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-24 21:52:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 21:52:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 21:52:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2023-11-24 21:52:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2023-11-24 21:52:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:52:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2023-11-24 21:52:58,520 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2023-11-24 21:52:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:52:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 21:52:58,521 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 21:52:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:52:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:52:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:52:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:52:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:52:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-24 21:52:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-24 21:52:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-24 21:52:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-24 21:52:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2023-11-24 21:52:58,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2023-11-24 21:52:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-24 21:52:58,522 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-24 21:52:58,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-24 21:52:58,523 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-24 21:52:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:52:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:52:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:52:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:52:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-24 21:52:58,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-24 21:52:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-24 21:52:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-24 21:52:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-24 21:52:58,524 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-24 21:52:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-24 21:52:58,524 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-24 21:52:58,524 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-11-24 21:52:58,525 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-11-24 21:52:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-24 21:52:58,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-24 21:52:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:52:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-24 21:52:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-24 21:52:58,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-24 21:52:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-24 21:52:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-24 21:52:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-24 21:52:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-24 21:52:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-24 21:52:58,526 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 21:52:58,526 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 21:52:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-24 21:52:58,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-24 21:52:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-24 21:52:58,527 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-24 21:52:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-24 21:52:58,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-24 21:52:58,527 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 21:52:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 21:52:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-11-24 21:52:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-11-24 21:52:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-24 21:52:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-24 21:52:58,528 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 21:52:58,528 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 21:52:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-24 21:52:58,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-24 21:52:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2023-11-24 21:52:58,529 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2023-11-24 21:52:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-24 21:52:58,529 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-24 21:52:58,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:52:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 21:52:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 21:52:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-24 21:52:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-24 21:52:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-24 21:52:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-24 21:52:58,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-24 21:52:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-24 21:52:58,531 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-24 21:52:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-24 21:52:58,531 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-24 21:52:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-24 21:52:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-24 21:52:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-24 21:52:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-24 21:52:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-24 21:52:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-24 21:52:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-24 21:52:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-24 21:52:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:52:58,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:52:58,984 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:52:58,987 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:52:59,254 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-24 21:52:59,541 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:53:02,663 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2023-11-24 21:53:02,664 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2023-11-24 21:53:02,706 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:53:02,889 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:53:02,889 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-11-24 21:53:02,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:53:02 BoogieIcfgContainer [2023-11-24 21:53:02,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:53:02,894 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:53:02,894 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:53:02,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:53:02,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:52:55" (1/3) ... [2023-11-24 21:53:02,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff8b174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:53:02, skipping insertion in model container [2023-11-24 21:53:02,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:52:57" (2/3) ... [2023-11-24 21:53:02,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff8b174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:53:02, skipping insertion in model container [2023-11-24 21:53:02,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:53:02" (3/3) ... [2023-11-24 21:53:02,902 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2023-11-24 21:53:02,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:53:02,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:53:02,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:53:03,003 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;@5fc98bcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:53:03,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:53:03,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 434 states, 283 states have (on average 1.4487632508833923) internal successors, (410), 295 states have internal predecessors, (410), 112 states have call successors, (112), 38 states have call predecessors, (112), 37 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-24 21:53:03,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 21:53:03,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:03,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:03,022 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:53:03,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:03,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1564587381, now seen corresponding path program 1 times [2023-11-24 21:53:03,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:53:03,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084259766] [2023-11-24 21:53:03,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:03,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:53:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:53:04,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:53:04,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084259766] [2023-11-24 21:53:04,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084259766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:04,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:04,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 21:53:04,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743788841] [2023-11-24 21:53:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:04,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 21:53:04,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:53:04,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 21:53:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:53:04,893 INFO L87 Difference]: Start difference. First operand has 434 states, 283 states have (on average 1.4487632508833923) internal successors, (410), 295 states have internal predecessors, (410), 112 states have call successors, (112), 38 states have call predecessors, (112), 37 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 21:53:09,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:09,279 INFO L93 Difference]: Finished difference Result 863 states and 1281 transitions. [2023-11-24 21:53:09,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:53:09,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-24 21:53:09,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:09,314 INFO L225 Difference]: With dead ends: 863 [2023-11-24 21:53:09,314 INFO L226 Difference]: Without dead ends: 435 [2023-11-24 21:53:09,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:53:09,325 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 260 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:09,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1788 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-24 21:53:09,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-24 21:53:09,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 430. [2023-11-24 21:53:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 282 states have (on average 1.3191489361702127) internal successors, (372), 290 states have internal predecessors, (372), 110 states have call successors, (110), 37 states have call predecessors, (110), 37 states have return successors, (107), 105 states have call predecessors, (107), 106 states have call successors, (107) [2023-11-24 21:53:09,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 589 transitions. [2023-11-24 21:53:09,427 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 589 transitions. Word has length 16 [2023-11-24 21:53:09,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:09,428 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 589 transitions. [2023-11-24 21:53:09,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 21:53:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 589 transitions. [2023-11-24 21:53:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 21:53:09,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:09,431 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:09,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 21:53:09,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:53:09,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:09,433 INFO L85 PathProgramCache]: Analyzing trace with hash 617265608, now seen corresponding path program 1 times [2023-11-24 21:53:09,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:53:09,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133120487] [2023-11-24 21:53:09,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:09,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:53:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:10,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-24 21:53:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 21:53:10,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:53:10,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133120487] [2023-11-24 21:53:10,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133120487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:10,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:10,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:53:10,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467274169] [2023-11-24 21:53:10,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:10,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:53:10,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:53:10,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:53:10,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:10,491 INFO L87 Difference]: Start difference. First operand 430 states and 589 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-24 21:53:12,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:53:13,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:13,591 INFO L93 Difference]: Finished difference Result 1254 states and 1732 transitions. [2023-11-24 21:53:13,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:53:13,592 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-24 21:53:13,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:13,602 INFO L225 Difference]: With dead ends: 1254 [2023-11-24 21:53:13,602 INFO L226 Difference]: Without dead ends: 840 [2023-11-24 21:53:13,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:13,606 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 575 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:13,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1145 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-24 21:53:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2023-11-24 21:53:13,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 836. [2023-11-24 21:53:13,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 550 states have (on average 1.32) internal successors, (726), 562 states have internal predecessors, (726), 213 states have call successors, (213), 72 states have call predecessors, (213), 72 states have return successors, (213), 206 states have call predecessors, (213), 209 states have call successors, (213) [2023-11-24 21:53:13,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1152 transitions. [2023-11-24 21:53:13,748 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1152 transitions. Word has length 20 [2023-11-24 21:53:13,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:13,757 INFO L495 AbstractCegarLoop]: Abstraction has 836 states and 1152 transitions. [2023-11-24 21:53:13,757 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-24 21:53:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1152 transitions. [2023-11-24 21:53:13,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 21:53:13,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:13,760 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:13,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 21:53:13,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:53:13,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:13,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1955119067, now seen corresponding path program 1 times [2023-11-24 21:53:13,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:53:13,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311438175] [2023-11-24 21:53:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:13,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:53:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:14,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:14,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:14,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-24 21:53:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 21:53:14,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:53:14,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311438175] [2023-11-24 21:53:14,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311438175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:14,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:14,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:53:14,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084136596] [2023-11-24 21:53:14,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:14,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:53:14,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:53:14,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:53:14,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:14,519 INFO L87 Difference]: Start difference. First operand 836 states and 1152 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-24 21:53:17,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:53:18,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:53:18,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:18,130 INFO L93 Difference]: Finished difference Result 2473 states and 3423 transitions. [2023-11-24 21:53:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:53:18,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-24 21:53:18,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:18,146 INFO L225 Difference]: With dead ends: 2473 [2023-11-24 21:53:18,146 INFO L226 Difference]: Without dead ends: 1647 [2023-11-24 21:53:18,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:53:18,151 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 574 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:18,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 1048 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-24 21:53:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2023-11-24 21:53:18,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1636. [2023-11-24 21:53:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1077 states have (on average 1.317548746518106) internal successors, (1419), 1096 states have internal predecessors, (1419), 418 states have call successors, (418), 141 states have call predecessors, (418), 140 states have return successors, (424), 406 states have call predecessors, (424), 414 states have call successors, (424) [2023-11-24 21:53:18,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2261 transitions. [2023-11-24 21:53:18,283 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2261 transitions. Word has length 21 [2023-11-24 21:53:18,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:18,284 INFO L495 AbstractCegarLoop]: Abstraction has 1636 states and 2261 transitions. [2023-11-24 21:53:18,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-24 21:53:18,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2261 transitions. [2023-11-24 21:53:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 21:53:18,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:18,289 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:53:18,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 21:53:18,290 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:53:18,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:18,290 INFO L85 PathProgramCache]: Analyzing trace with hash -182624554, now seen corresponding path program 1 times [2023-11-24 21:53:18,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:53:18,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13573338] [2023-11-24 21:53:18,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:18,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:53:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-24 21:53:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-24 21:53:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-24 21:53:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-24 21:53:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-24 21:53:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-24 21:53:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 21:53:19,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:53:19,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13573338] [2023-11-24 21:53:19,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13573338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:19,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:19,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 21:53:19,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992809451] [2023-11-24 21:53:19,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:19,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 21:53:19,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:53:19,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 21:53:19,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:53:19,579 INFO L87 Difference]: Start difference. First operand 1636 states and 2261 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 21:53:23,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:53:27,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:53:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:27,568 INFO L93 Difference]: Finished difference Result 4172 states and 6022 transitions. [2023-11-24 21:53:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 21:53:27,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2023-11-24 21:53:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:27,590 INFO L225 Difference]: With dead ends: 4172 [2023-11-24 21:53:27,591 INFO L226 Difference]: Without dead ends: 2547 [2023-11-24 21:53:27,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:53:27,604 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 430 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:27,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1331 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-11-24 21:53:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2023-11-24 21:53:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2455. [2023-11-24 21:53:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 1644 states have (on average 1.3473236009732361) internal successors, (2215), 1679 states have internal predecessors, (2215), 670 states have call successors, (670), 141 states have call predecessors, (670), 140 states have return successors, (684), 650 states have call predecessors, (684), 666 states have call successors, (684) [2023-11-24 21:53:27,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3569 transitions. [2023-11-24 21:53:27,817 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3569 transitions. Word has length 60 [2023-11-24 21:53:27,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:27,818 INFO L495 AbstractCegarLoop]: Abstraction has 2455 states and 3569 transitions. [2023-11-24 21:53:27,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-24 21:53:27,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3569 transitions. [2023-11-24 21:53:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 21:53:27,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:27,830 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-24 21:53:27,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 21:53:27,832 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:53:27,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:27,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2138342693, now seen corresponding path program 1 times [2023-11-24 21:53:27,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:53:27,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386039854] [2023-11-24 21:53:27,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:27,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:53:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-24 21:53:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-24 21:53:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-24 21:53:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-24 21:53:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-24 21:53:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-24 21:53:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-24 21:53:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:53:28,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:53:28,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386039854] [2023-11-24 21:53:28,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386039854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:28,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:28,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 21:53:28,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068169536] [2023-11-24 21:53:28,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:28,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:53:28,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:53:28,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:53:28,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:53:28,986 INFO L87 Difference]: Start difference. First operand 2455 states and 3569 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-24 21:53:33,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:53:37,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:53:42,489 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 [] [2023-11-24 21:53:42,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:53:42,535 INFO L93 Difference]: Finished difference Result 4986 states and 7319 transitions. [2023-11-24 21:53:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 21:53:42,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 64 [2023-11-24 21:53:42,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:53:42,557 INFO L225 Difference]: With dead ends: 4986 [2023-11-24 21:53:42,557 INFO L226 Difference]: Without dead ends: 2543 [2023-11-24 21:53:42,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:53:42,568 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 107 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 107 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:53:42,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1663 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 855 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2023-11-24 21:53:42,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2023-11-24 21:53:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 2487. [2023-11-24 21:53:42,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 1670 states have (on average 1.34311377245509) internal successors, (2243), 1707 states have internal predecessors, (2243), 670 states have call successors, (670), 141 states have call predecessors, (670), 146 states have return successors, (706), 654 states have call predecessors, (706), 666 states have call successors, (706) [2023-11-24 21:53:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3619 transitions. [2023-11-24 21:53:42,752 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3619 transitions. Word has length 64 [2023-11-24 21:53:42,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:53:42,753 INFO L495 AbstractCegarLoop]: Abstraction has 2487 states and 3619 transitions. [2023-11-24 21:53:42,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-24 21:53:42,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3619 transitions. [2023-11-24 21:53:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 21:53:42,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:53:42,757 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-24 21:53:42,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 21:53:42,758 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:53:42,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:53:42,759 INFO L85 PathProgramCache]: Analyzing trace with hash -958306865, now seen corresponding path program 1 times [2023-11-24 21:53:42,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:53:42,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613896043] [2023-11-24 21:53:42,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:53:42,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 21:53:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-24 21:53:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-24 21:53:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-24 21:53:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-24 21:53:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-24 21:53:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-24 21:53:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-24 21:53:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-24 21:53:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:53:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:53:43,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 21:53:43,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613896043] [2023-11-24 21:53:43,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613896043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:53:43,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:53:43,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-24 21:53:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764531385] [2023-11-24 21:53:43,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:53:43,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:53:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 21:53:43,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:53:43,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:53:43,907 INFO L87 Difference]: Start difference. First operand 2487 states and 3619 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9)