./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 02:30:20,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 02:30:20,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 02:30:20,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 02:30:20,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 02:30:20,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 02:30:20,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 02:30:20,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 02:30:20,852 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 02:30:20,854 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 02:30:20,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 02:30:20,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 02:30:20,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 02:30:20,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 02:30:20,856 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 02:30:20,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 02:30:20,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 02:30:20,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 02:30:20,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 02:30:20,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 02:30:20,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 02:30:20,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 02:30:20,862 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 02:30:20,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 02:30:20,863 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 02:30:20,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 02:30:20,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 02:30:20,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 02:30:20,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 02:30:20,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:30:20,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 02:30:20,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 02:30:20,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 02:30:20,865 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 02:30:20,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 02:30:20,865 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 02:30:20,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 02:30:20,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 02:30:20,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 02:30:20,868 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a [2024-11-19 02:30:21,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 02:30:21,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 02:30:21,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 02:30:21,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 02:30:21,159 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 02:30:21,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-19 02:30:22,557 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 02:30:23,017 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 02:30:23,017 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-19 02:30:23,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf576fce5/356612d7934d47a8a6596f5be5216188/FLAG54aad5fbb [2024-11-19 02:30:23,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf576fce5/356612d7934d47a8a6596f5be5216188 [2024-11-19 02:30:23,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 02:30:23,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 02:30:23,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 02:30:23,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 02:30:23,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 02:30:23,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:23" (1/1) ... [2024-11-19 02:30:23,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c79ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:23, skipping insertion in model container [2024-11-19 02:30:23,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:23" (1/1) ... [2024-11-19 02:30:23,216 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 02:30:24,283 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2024-11-19 02:30:24,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:30:24,355 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 02:30:24,456 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] [2024-11-19 02:30:24,458 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] [2024-11-19 02:30:24,459 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] [2024-11-19 02:30:24,462 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] [2024-11-19 02:30:24,463 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] [2024-11-19 02:30:24,595 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] [2024-11-19 02:30:24,701 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2024-11-19 02:30:24,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 02:30:24,912 INFO L204 MainTranslator]: Completed translation [2024-11-19 02:30:24,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24 WrapperNode [2024-11-19 02:30:24,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 02:30:24,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 02:30:24,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 02:30:24,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 02:30:24,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:24,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,082 INFO L138 Inliner]: procedures = 132, calls = 778, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1708 [2024-11-19 02:30:25,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 02:30:25,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 02:30:25,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 02:30:25,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 02:30:25,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,301 INFO L175 MemorySlicer]: Split 342 memory accesses to 8 slices as follows [2, 8, 8, 8, 261, 10, 3, 42]. 76 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 8, 8, 8, 8, 0, 0, 0]. The 214 writes are split as follows [0, 0, 0, 0, 172, 0, 0, 42]. [2024-11-19 02:30:25,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,301 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 02:30:25,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 02:30:25,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 02:30:25,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 02:30:25,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (1/1) ... [2024-11-19 02:30:25,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 02:30:25,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 02:30:25,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 02:30:25,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 02:30:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-19 02:30:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-19 02:30:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2024-11-19 02:30:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2024-11-19 02:30:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 02:30:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 02:30:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 02:30:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 02:30:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 02:30:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 02:30:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 02:30:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 02:30:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-19 02:30:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-19 02:30:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-19 02:30:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-19 02:30:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-19 02:30:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-19 02:30:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-19 02:30:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-19 02:30:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-19 02:30:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-19 02:30:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 02:30:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 02:30:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 02:30:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 02:30:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 02:30:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 02:30:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 02:30:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 02:30:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 02:30:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 02:30:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 02:30:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 02:30:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 02:30:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 02:30:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 02:30:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 02:30:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-19 02:30:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-19 02:30:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2024-11-19 02:30:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2024-11-19 02:30:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-19 02:30:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-19 02:30:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 02:30:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 02:30:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2024-11-19 02:30:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2024-11-19 02:30:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-19 02:30:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-19 02:30:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 02:30:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 02:30:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-19 02:30:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-19 02:30:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 02:30:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 02:30:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 02:30:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 02:30:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 02:30:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 02:30:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 02:30:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 02:30:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2024-11-19 02:30:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2024-11-19 02:30:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-19 02:30:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-19 02:30:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2024-11-19 02:30:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2024-11-19 02:30:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-19 02:30:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-19 02:30:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2024-11-19 02:30:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2024-11-19 02:30:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 02:30:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-19 02:30:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-19 02:30:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 02:30:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-19 02:30:25,539 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-19 02:30:25,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2024-11-19 02:30:25,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2024-11-19 02:30:25,540 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-19 02:30:25,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-19 02:30:25,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 02:30:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-19 02:30:25,542 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-19 02:30:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-19 02:30:25,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-19 02:30:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-19 02:30:25,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-19 02:30:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-19 02:30:25,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-19 02:30:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 02:30:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 02:30:25,543 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 02:30:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-19 02:30:25,543 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-19 02:30:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-19 02:30:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-19 02:30:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-19 02:30:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-19 02:30:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-19 02:30:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-19 02:30:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-19 02:30:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-19 02:30:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-19 02:30:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-19 02:30:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-19 02:30:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-19 02:30:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-19 02:30:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-19 02:30:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-19 02:30:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-19 02:30:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-19 02:30:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-19 02:30:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 02:30:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 02:30:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 02:30:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 02:30:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 02:30:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 02:30:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 02:30:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 02:30:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-19 02:30:25,547 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-19 02:30:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-19 02:30:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-19 02:30:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-19 02:30:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-19 02:30:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-19 02:30:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-19 02:30:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-19 02:30:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-19 02:30:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-19 02:30:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-19 02:30:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 02:30:25,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 02:30:25,909 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 02:30:25,912 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 02:30:26,120 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-19 02:30:26,398 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-19 02:30:34,106 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2024-11-19 02:30:34,106 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2024-11-19 02:30:34,322 INFO L? ?]: Removed 601 outVars from TransFormulas that were not future-live. [2024-11-19 02:30:34,323 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 02:30:34,353 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 02:30:34,357 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-19 02:30:34,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:34 BoogieIcfgContainer [2024-11-19 02:30:34,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 02:30:34,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 02:30:34,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 02:30:34,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 02:30:34,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:30:23" (1/3) ... [2024-11-19 02:30:34,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233a49b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:30:34, skipping insertion in model container [2024-11-19 02:30:34,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:24" (2/3) ... [2024-11-19 02:30:34,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233a49b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:30:34, skipping insertion in model container [2024-11-19 02:30:34,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:34" (3/3) ... [2024-11-19 02:30:34,366 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2024-11-19 02:30:34,383 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 02:30:34,383 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 02:30:34,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 02:30:34,478 INFO L333 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, 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;@3b450af1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 02:30:34,481 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 02:30:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 521 states, 370 states have (on average 1.3432432432432433) internal successors, (497), 382 states have internal predecessors, (497), 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) [2024-11-19 02:30:34,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 02:30:34,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:34,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:34,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:34,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:34,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1540023497, now seen corresponding path program 1 times [2024-11-19 02:30:34,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:34,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031899815] [2024-11-19 02:30:34,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:34,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:30:38,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:38,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031899815] [2024-11-19 02:30:38,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031899815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:38,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:38,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 02:30:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094475195] [2024-11-19 02:30:38,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:38,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:30:38,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:38,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:30:38,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:30:38,555 INFO L87 Difference]: Start difference. First operand has 521 states, 370 states have (on average 1.3432432432432433) internal successors, (497), 382 states have internal predecessors, (497), 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 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-19 02:30:38,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:38,816 INFO L93 Difference]: Finished difference Result 1026 states and 1440 transitions. [2024-11-19 02:30:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:30:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 21 [2024-11-19 02:30:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:38,842 INFO L225 Difference]: With dead ends: 1026 [2024-11-19 02:30:38,842 INFO L226 Difference]: Without dead ends: 514 [2024-11-19 02:30:38,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:30:38,858 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 0 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:38,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2697 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:38,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-19 02:30:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-11-19 02:30:38,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 366 states have (on average 1.2459016393442623) internal successors, (456), 374 states have internal predecessors, (456), 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) [2024-11-19 02:30:38,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 673 transitions. [2024-11-19 02:30:38,969 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 673 transitions. Word has length 21 [2024-11-19 02:30:38,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:38,971 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 673 transitions. [2024-11-19 02:30:38,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-19 02:30:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 673 transitions. [2024-11-19 02:30:38,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 02:30:38,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:38,974 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:30:38,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 02:30:38,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:38,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:38,975 INFO L85 PathProgramCache]: Analyzing trace with hash -942975973, now seen corresponding path program 1 times [2024-11-19 02:30:38,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:38,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99815911] [2024-11-19 02:30:38,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:38,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 02:30:41,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:41,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99815911] [2024-11-19 02:30:41,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99815911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:41,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:41,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 02:30:41,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580498127] [2024-11-19 02:30:41,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:41,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:30:41,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:41,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:30:41,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:41,883 INFO L87 Difference]: Start difference. First operand 514 states and 673 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, (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) [2024-11-19 02:30:42,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:42,039 INFO L93 Difference]: Finished difference Result 1498 states and 1976 transitions. [2024-11-19 02:30:42,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:30:42,040 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, (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 26 [2024-11-19 02:30:42,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:42,053 INFO L225 Difference]: With dead ends: 1498 [2024-11-19 02:30:42,054 INFO L226 Difference]: Without dead ends: 1004 [2024-11-19 02:30:42,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:42,057 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 657 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:42,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1383 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2024-11-19 02:30:42,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 1000. [2024-11-19 02:30:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 714 states have (on average 1.246498599439776) internal successors, (890), 726 states have internal predecessors, (890), 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) [2024-11-19 02:30:42,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1316 transitions. [2024-11-19 02:30:42,128 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1316 transitions. Word has length 26 [2024-11-19 02:30:42,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:42,129 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1316 transitions. [2024-11-19 02:30:42,131 INFO L472 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, (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) [2024-11-19 02:30:42,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1316 transitions. [2024-11-19 02:30:42,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 02:30:42,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:42,132 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 02:30:42,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 02:30:42,133 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:42,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:42,133 INFO L85 PathProgramCache]: Analyzing trace with hash 832270623, now seen corresponding path program 1 times [2024-11-19 02:30:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:42,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930854601] [2024-11-19 02:30:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:42,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 02:30:44,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:44,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930854601] [2024-11-19 02:30:44,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930854601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:44,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:44,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 02:30:44,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778213329] [2024-11-19 02:30:44,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:44,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:30:44,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:44,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:30:44,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:44,619 INFO L87 Difference]: Start difference. First operand 1000 states and 1316 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-19 02:30:44,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:44,749 INFO L93 Difference]: Finished difference Result 2957 states and 3907 transitions. [2024-11-19 02:30:44,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:30:44,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 27 [2024-11-19 02:30:44,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:44,766 INFO L225 Difference]: With dead ends: 2957 [2024-11-19 02:30:44,767 INFO L226 Difference]: Without dead ends: 1969 [2024-11-19 02:30:44,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:44,774 INFO L432 NwaCegarLoop]: 687 mSDtfsCounter, 656 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:44,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1331 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:44,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-11-19 02:30:44,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1958. [2024-11-19 02:30:44,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1958 states, 1399 states have (on average 1.2444603288062903) internal successors, (1741), 1418 states have internal predecessors, (1741), 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) [2024-11-19 02:30:44,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1958 states to 1958 states and 2583 transitions. [2024-11-19 02:30:44,887 INFO L78 Accepts]: Start accepts. Automaton has 1958 states and 2583 transitions. Word has length 27 [2024-11-19 02:30:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:44,888 INFO L471 AbstractCegarLoop]: Abstraction has 1958 states and 2583 transitions. [2024-11-19 02:30:44,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-19 02:30:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1958 states and 2583 transitions. [2024-11-19 02:30:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-19 02:30:44,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:44,896 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 02:30:44,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 02:30:44,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:44,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:44,899 INFO L85 PathProgramCache]: Analyzing trace with hash -863698126, now seen corresponding path program 1 times [2024-11-19 02:30:44,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:44,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349187183] [2024-11-19 02:30:44,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:44,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 02:30:47,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:47,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349187183] [2024-11-19 02:30:47,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349187183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:47,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:47,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 02:30:47,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432921152] [2024-11-19 02:30:47,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:47,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:30:47,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:47,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:30:47,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:47,217 INFO L87 Difference]: Start difference. First operand 1958 states and 2583 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:47,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:47,378 INFO L93 Difference]: Finished difference Result 4820 states and 6572 transitions. [2024-11-19 02:30:47,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:30:47,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (11), 2 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 76 [2024-11-19 02:30:47,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:47,396 INFO L225 Difference]: With dead ends: 4820 [2024-11-19 02:30:47,397 INFO L226 Difference]: Without dead ends: 2877 [2024-11-19 02:30:47,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:30:47,406 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 264 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:47,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1354 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:47,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2024-11-19 02:30:47,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2865. [2024-11-19 02:30:47,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2054 states have (on average 1.2779941577409932) internal successors, (2625), 2089 states have internal predecessors, (2625), 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) [2024-11-19 02:30:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 3979 transitions. [2024-11-19 02:30:47,529 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 3979 transitions. Word has length 76 [2024-11-19 02:30:47,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:47,530 INFO L471 AbstractCegarLoop]: Abstraction has 2865 states and 3979 transitions. [2024-11-19 02:30:47,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:47,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 3979 transitions. [2024-11-19 02:30:47,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 02:30:47,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:47,536 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 02:30:47,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 02:30:47,537 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:47,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:47,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2056923021, now seen corresponding path program 1 times [2024-11-19 02:30:47,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:47,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737489857] [2024-11-19 02:30:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:47,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:30:49,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:49,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737489857] [2024-11-19 02:30:49,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737489857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:49,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:49,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 02:30:49,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943228421] [2024-11-19 02:30:49,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:49,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 02:30:49,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:49,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 02:30:49,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:49,779 INFO L87 Difference]: Start difference. First operand 2865 states and 3979 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:49,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:49,945 INFO L93 Difference]: Finished difference Result 5730 states and 7963 transitions. [2024-11-19 02:30:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 02:30:49,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2024-11-19 02:30:49,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:49,968 INFO L225 Difference]: With dead ends: 5730 [2024-11-19 02:30:49,968 INFO L226 Difference]: Without dead ends: 2881 [2024-11-19 02:30:49,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 02:30:49,980 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 0 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:49,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1990 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2024-11-19 02:30:50,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2024-11-19 02:30:50,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2070 states have (on average 1.2758454106280193) internal successors, (2641), 2105 states have internal predecessors, (2641), 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) [2024-11-19 02:30:50,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 3995 transitions. [2024-11-19 02:30:50,115 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 3995 transitions. Word has length 78 [2024-11-19 02:30:50,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:50,115 INFO L471 AbstractCegarLoop]: Abstraction has 2881 states and 3995 transitions. [2024-11-19 02:30:50,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 3995 transitions. [2024-11-19 02:30:50,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 02:30:50,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:50,122 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 02:30:50,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 02:30:50,123 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:50,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:50,123 INFO L85 PathProgramCache]: Analyzing trace with hash -479661540, now seen corresponding path program 1 times [2024-11-19 02:30:50,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:50,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053944232] [2024-11-19 02:30:50,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:50,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:30:52,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:52,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053944232] [2024-11-19 02:30:52,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053944232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:52,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:52,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 02:30:52,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85927334] [2024-11-19 02:30:52,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:52,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:30:52,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:52,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:30:52,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 02:30:52,664 INFO L87 Difference]: Start difference. First operand 2881 states and 3995 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:52,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:52,917 INFO L93 Difference]: Finished difference Result 5762 states and 7995 transitions. [2024-11-19 02:30:52,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 02:30:52,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-19 02:30:52,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:52,937 INFO L225 Difference]: With dead ends: 5762 [2024-11-19 02:30:52,937 INFO L226 Difference]: Without dead ends: 2897 [2024-11-19 02:30:52,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 02:30:52,950 INFO L432 NwaCegarLoop]: 664 mSDtfsCounter, 0 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:52,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3308 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 02:30:52,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-19 02:30:53,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2897. [2024-11-19 02:30:53,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2086 states have (on average 1.2737296260786193) internal successors, (2657), 2121 states have internal predecessors, (2657), 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) [2024-11-19 02:30:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 4011 transitions. [2024-11-19 02:30:53,076 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 4011 transitions. Word has length 79 [2024-11-19 02:30:53,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:53,077 INFO L471 AbstractCegarLoop]: Abstraction has 2897 states and 4011 transitions. [2024-11-19 02:30:53,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:53,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 4011 transitions. [2024-11-19 02:30:53,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 02:30:53,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:53,081 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 02:30:53,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 02:30:53,081 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:53,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash -2123920677, now seen corresponding path program 1 times [2024-11-19 02:30:53,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:53,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745723577] [2024-11-19 02:30:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:55,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:30:55,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:55,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745723577] [2024-11-19 02:30:55,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745723577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:55,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:55,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 02:30:55,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847801534] [2024-11-19 02:30:55,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:55,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:30:55,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:55,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:30:55,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:30:55,824 INFO L87 Difference]: Start difference. First operand 2897 states and 4011 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:30:56,050 INFO L93 Difference]: Finished difference Result 4375 states and 6084 transitions. [2024-11-19 02:30:56,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:30:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-19 02:30:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:30:56,073 INFO L225 Difference]: With dead ends: 4375 [2024-11-19 02:30:56,073 INFO L226 Difference]: Without dead ends: 2925 [2024-11-19 02:30:56,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:30:56,081 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 0 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3992 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:30:56,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3992 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:30:56,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2024-11-19 02:30:56,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2925. [2024-11-19 02:30:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2106 states have (on average 1.2711301044634378) internal successors, (2677), 2141 states have internal predecessors, (2677), 670 states have call successors, (670), 141 states have call predecessors, (670), 148 states have return successors, (708), 658 states have call predecessors, (708), 666 states have call successors, (708) [2024-11-19 02:30:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4055 transitions. [2024-11-19 02:30:56,279 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4055 transitions. Word has length 79 [2024-11-19 02:30:56,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:30:56,280 INFO L471 AbstractCegarLoop]: Abstraction has 2925 states and 4055 transitions. [2024-11-19 02:30:56,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:30:56,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4055 transitions. [2024-11-19 02:30:56,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 02:30:56,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:30:56,284 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 02:30:56,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 02:30:56,284 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:30:56,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:30:56,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1794154916, now seen corresponding path program 1 times [2024-11-19 02:30:56,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:30:56,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142992264] [2024-11-19 02:30:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:30:56,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:30:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:30:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 02:30:59,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:30:59,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142992264] [2024-11-19 02:30:59,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142992264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:30:59,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:30:59,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 02:30:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586288634] [2024-11-19 02:30:59,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:30:59,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 02:30:59,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:30:59,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 02:30:59,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 02:30:59,275 INFO L87 Difference]: Start difference. First operand 2925 states and 4055 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:31:00,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:31:00,023 INFO L93 Difference]: Finished difference Result 6098 states and 8521 transitions. [2024-11-19 02:31:00,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 02:31:00,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-19 02:31:00,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:31:00,046 INFO L225 Difference]: With dead ends: 6098 [2024-11-19 02:31:00,048 INFO L226 Difference]: Without dead ends: 3189 [2024-11-19 02:31:00,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 02:31:00,061 INFO L432 NwaCegarLoop]: 769 mSDtfsCounter, 59 mSDsluCounter, 6050 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 6819 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 02:31:00,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 6819 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 02:31:00,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2024-11-19 02:31:00,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 2933. [2024-11-19 02:31:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2933 states, 2112 states have (on average 1.2684659090909092) internal successors, (2679), 2147 states have internal predecessors, (2679), 670 states have call successors, (670), 141 states have call predecessors, (670), 150 states have return successors, (718), 660 states have call predecessors, (718), 666 states have call successors, (718) [2024-11-19 02:31:00,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 4067 transitions. [2024-11-19 02:31:00,203 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 4067 transitions. Word has length 79 [2024-11-19 02:31:00,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:31:00,204 INFO L471 AbstractCegarLoop]: Abstraction has 2933 states and 4067 transitions. [2024-11-19 02:31:00,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:31:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 4067 transitions. [2024-11-19 02:31:00,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-19 02:31:00,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:31:00,208 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:31:00,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 02:31:00,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:31:00,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:31:00,210 INFO L85 PathProgramCache]: Analyzing trace with hash 468537173, now seen corresponding path program 1 times [2024-11-19 02:31:00,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:31:00,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015039263] [2024-11-19 02:31:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:31:00,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:31:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:31:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 02:31:02,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:31:02,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015039263] [2024-11-19 02:31:02,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015039263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:31:02,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:31:02,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 02:31:02,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650160396] [2024-11-19 02:31:02,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:31:02,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:31:02,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:31:02,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:31:02,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:31:02,518 INFO L87 Difference]: Start difference. First operand 2933 states and 4067 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:31:02,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:31:02,729 INFO L93 Difference]: Finished difference Result 5588 states and 7717 transitions. [2024-11-19 02:31:02,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:31:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 85 [2024-11-19 02:31:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:31:02,748 INFO L225 Difference]: With dead ends: 5588 [2024-11-19 02:31:02,748 INFO L226 Difference]: Without dead ends: 2671 [2024-11-19 02:31:02,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:31:02,759 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 0 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:31:02,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2653 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:31:02,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2024-11-19 02:31:02,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2671. [2024-11-19 02:31:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2671 states, 1928 states have (on average 1.258817427385892) internal successors, (2427), 1947 states have internal predecessors, (2427), 594 states have call successors, (594), 139 states have call predecessors, (594), 148 states have return successors, (640), 592 states have call predecessors, (640), 590 states have call successors, (640) [2024-11-19 02:31:02,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 3661 transitions. [2024-11-19 02:31:02,873 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 3661 transitions. Word has length 85 [2024-11-19 02:31:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:31:02,873 INFO L471 AbstractCegarLoop]: Abstraction has 2671 states and 3661 transitions. [2024-11-19 02:31:02,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:31:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 3661 transitions. [2024-11-19 02:31:02,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-19 02:31:02,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:31:02,876 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:31:02,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 02:31:02,877 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:31:02,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:31:02,882 INFO L85 PathProgramCache]: Analyzing trace with hash -247617164, now seen corresponding path program 1 times [2024-11-19 02:31:02,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:31:02,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045107371] [2024-11-19 02:31:02,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:31:02,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:31:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:31:05,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 02:31:05,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:31:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045107371] [2024-11-19 02:31:05,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045107371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:31:05,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:31:05,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 02:31:05,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31313102] [2024-11-19 02:31:05,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:31:05,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 02:31:05,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:31:05,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 02:31:05,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 02:31:05,941 INFO L87 Difference]: Start difference. First operand 2671 states and 3661 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-19 02:31:09,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 02:31:14,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 02:31:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:31:24,421 INFO L93 Difference]: Finished difference Result 4160 states and 5751 transitions. [2024-11-19 02:31:24,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:31:24,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 85 [2024-11-19 02:31:24,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:31:24,447 INFO L225 Difference]: With dead ends: 4160 [2024-11-19 02:31:24,448 INFO L226 Difference]: Without dead ends: 4155 [2024-11-19 02:31:24,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:31:24,451 INFO L432 NwaCegarLoop]: 1027 mSDtfsCounter, 1346 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 226 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:31:24,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 2685 Invalid, 1641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [226 Valid, 1413 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2024-11-19 02:31:24,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2024-11-19 02:31:24,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 4125. [2024-11-19 02:31:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 2976 states have (on average 1.2620967741935485) internal successors, (3756), 3011 states have internal predecessors, (3756), 924 states have call successors, (924), 207 states have call predecessors, (924), 224 states have return successors, (1036), 922 states have call predecessors, (1036), 920 states have call successors, (1036) [2024-11-19 02:31:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5716 transitions. [2024-11-19 02:31:24,676 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5716 transitions. Word has length 85 [2024-11-19 02:31:24,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:31:24,678 INFO L471 AbstractCegarLoop]: Abstraction has 4125 states and 5716 transitions. [2024-11-19 02:31:24,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-19 02:31:24,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5716 transitions. [2024-11-19 02:31:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 02:31:24,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:31:24,682 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:31:24,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 02:31:24,683 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:31:24,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:31:24,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1448794856, now seen corresponding path program 1 times [2024-11-19 02:31:24,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:31:24,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774803191] [2024-11-19 02:31:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:31:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:31:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:31:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 02:31:27,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:31:27,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774803191] [2024-11-19 02:31:27,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774803191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:31:27,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:31:27,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 02:31:27,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443873269] [2024-11-19 02:31:27,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:31:27,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:31:27,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:31:27,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:31:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:31:27,256 INFO L87 Difference]: Start difference. First operand 4125 states and 5716 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:31:27,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:31:27,458 INFO L93 Difference]: Finished difference Result 6831 states and 9477 transitions. [2024-11-19 02:31:27,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:31:27,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2024-11-19 02:31:27,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:31:27,488 INFO L225 Difference]: With dead ends: 6831 [2024-11-19 02:31:27,489 INFO L226 Difference]: Without dead ends: 3901 [2024-11-19 02:31:27,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:31:27,504 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 0 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:31:27,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2657 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:31:27,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2024-11-19 02:31:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 3901. [2024-11-19 02:31:27,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3901 states, 2815 states have (on average 1.255772646536412) internal successors, (3535), 2837 states have internal predecessors, (3535), 860 states have call successors, (860), 205 states have call predecessors, (860), 225 states have return successors, (978), 870 states have call predecessors, (978), 856 states have call successors, (978) [2024-11-19 02:31:27,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 5373 transitions. [2024-11-19 02:31:27,725 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 5373 transitions. Word has length 93 [2024-11-19 02:31:27,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:31:27,726 INFO L471 AbstractCegarLoop]: Abstraction has 3901 states and 5373 transitions. [2024-11-19 02:31:27,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:31:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 5373 transitions. [2024-11-19 02:31:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 02:31:27,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:31:27,731 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 02:31:27,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 02:31:27,732 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:31:27,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:31:27,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1479814663, now seen corresponding path program 1 times [2024-11-19 02:31:27,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:31:27,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375284222] [2024-11-19 02:31:27,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:31:27,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:31:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:31:30,632 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 02:31:30,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:31:30,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375284222] [2024-11-19 02:31:30,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375284222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:31:30,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:31:30,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 02:31:30,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248548403] [2024-11-19 02:31:30,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:31:30,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 02:31:30,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:31:30,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 02:31:30,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:31:30,635 INFO L87 Difference]: Start difference. First operand 3901 states and 5373 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-19 02:31:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:31:30,953 INFO L93 Difference]: Finished difference Result 6000 states and 8299 transitions. [2024-11-19 02:31:30,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 02:31:30,955 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2024-11-19 02:31:30,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:31:30,976 INFO L225 Difference]: With dead ends: 6000 [2024-11-19 02:31:30,976 INFO L226 Difference]: Without dead ends: 3913 [2024-11-19 02:31:30,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 02:31:30,984 INFO L432 NwaCegarLoop]: 668 mSDtfsCounter, 0 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4000 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:31:30,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4000 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 02:31:30,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2024-11-19 02:31:31,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3913. [2024-11-19 02:31:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3913 states, 2827 states have (on average 1.2546869472939512) internal successors, (3547), 2843 states have internal predecessors, (3547), 860 states have call successors, (860), 205 states have call predecessors, (860), 225 states have return successors, (978), 876 states have call predecessors, (978), 856 states have call successors, (978) [2024-11-19 02:31:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3913 states to 3913 states and 5385 transitions. [2024-11-19 02:31:31,132 INFO L78 Accepts]: Start accepts. Automaton has 3913 states and 5385 transitions. Word has length 93 [2024-11-19 02:31:31,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:31:31,133 INFO L471 AbstractCegarLoop]: Abstraction has 3913 states and 5385 transitions. [2024-11-19 02:31:31,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-19 02:31:31,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3913 states and 5385 transitions. [2024-11-19 02:31:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 02:31:31,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:31:31,137 INFO L215 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] [2024-11-19 02:31:31,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 02:31:31,137 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:31:31,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:31:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash -703862264, now seen corresponding path program 1 times [2024-11-19 02:31:31,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:31:31,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941359256] [2024-11-19 02:31:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:31:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:31:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:31:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 02:31:33,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:31:33,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941359256] [2024-11-19 02:31:33,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941359256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:31:33,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:31:33,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 02:31:33,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580840645] [2024-11-19 02:31:33,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:31:33,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 02:31:33,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:31:33,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 02:31:33,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:31:33,229 INFO L87 Difference]: Start difference. First operand 3913 states and 5385 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:31:33,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:31:33,488 INFO L93 Difference]: Finished difference Result 5471 states and 7557 transitions. [2024-11-19 02:31:33,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 02:31:33,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 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 93 [2024-11-19 02:31:33,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:31:33,515 INFO L225 Difference]: With dead ends: 5471 [2024-11-19 02:31:33,515 INFO L226 Difference]: Without dead ends: 3977 [2024-11-19 02:31:33,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 02:31:33,524 INFO L432 NwaCegarLoop]: 664 mSDtfsCounter, 10 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 02:31:33,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1320 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 02:31:33,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2024-11-19 02:31:33,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3921. [2024-11-19 02:31:33,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 2835 states have (on average 1.253968253968254) internal successors, (3555), 2851 states have internal predecessors, (3555), 860 states have call successors, (860), 205 states have call predecessors, (860), 225 states have return successors, (978), 876 states have call predecessors, (978), 856 states have call successors, (978) [2024-11-19 02:31:33,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 5393 transitions. [2024-11-19 02:31:33,673 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 5393 transitions. Word has length 93 [2024-11-19 02:31:33,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:31:33,674 INFO L471 AbstractCegarLoop]: Abstraction has 3921 states and 5393 transitions. [2024-11-19 02:31:33,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-19 02:31:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 5393 transitions. [2024-11-19 02:31:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 02:31:33,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:31:33,678 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-19 02:31:33,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 02:31:33,678 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:31:33,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:31:33,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1321384699, now seen corresponding path program 1 times [2024-11-19 02:31:33,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:31:33,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799393736] [2024-11-19 02:31:33,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:31:33,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 02:31:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 02:31:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 02:31:36,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 02:31:36,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799393736] [2024-11-19 02:31:36,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799393736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 02:31:36,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 02:31:36,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 02:31:36,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136974195] [2024-11-19 02:31:36,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 02:31:36,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 02:31:36,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 02:31:36,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 02:31:36,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:31:36,207 INFO L87 Difference]: Start difference. First operand 3921 states and 5393 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 02:31:36,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 02:31:36,453 INFO L93 Difference]: Finished difference Result 7158 states and 9861 transitions. [2024-11-19 02:31:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 02:31:36,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2024-11-19 02:31:36,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 02:31:36,477 INFO L225 Difference]: With dead ends: 7158 [2024-11-19 02:31:36,477 INFO L226 Difference]: Without dead ends: 3253 [2024-11-19 02:31:36,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 02:31:36,493 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 0 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 02:31:36,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2658 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 02:31:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2024-11-19 02:31:36,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3253. [2024-11-19 02:31:36,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 2360 states have (on average 1.2529661016949152) internal successors, (2957), 2368 states have internal predecessors, (2957), 709 states have call successors, (709), 166 states have call predecessors, (709), 183 states have return successors, (811), 730 states have call predecessors, (811), 705 states have call successors, (811) [2024-11-19 02:31:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 4477 transitions. [2024-11-19 02:31:36,613 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 4477 transitions. Word has length 106 [2024-11-19 02:31:36,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 02:31:36,614 INFO L471 AbstractCegarLoop]: Abstraction has 3253 states and 4477 transitions. [2024-11-19 02:31:36,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 02:31:36,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 4477 transitions. [2024-11-19 02:31:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-19 02:31:36,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 02:31:36,618 INFO L215 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] [2024-11-19 02:31:36,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 02:31:36,619 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 02:31:36,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 02:31:36,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1295220777, now seen corresponding path program 1 times [2024-11-19 02:31:36,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 02:31:36,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785854048] [2024-11-19 02:31:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 02:31:36,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms