./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.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-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.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 106df4f5c2a241158f9b42d6bacea5fef4152f7015c080096ac6f687357e10b4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:16:44,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:16:44,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:16:44,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:16:44,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:16:44,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:16:44,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:16:44,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:16:44,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:16:44,674 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:16:44,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:16:44,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:16:44,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:16:44,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:16:44,677 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:16:44,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:16:44,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:16:44,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:16:44,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:16:44,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:16:44,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:16:44,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:16:44,682 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:16:44,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:16:44,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:16:44,683 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:16:44,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:16:44,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:16:44,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:16:44,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:16:44,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:16:44,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:16:44,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:16:44,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:16:44,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:16:44,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:16:44,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:16:44,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:16:44,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:16:44,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 106df4f5c2a241158f9b42d6bacea5fef4152f7015c080096ac6f687357e10b4 [2024-11-19 03:16:44,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:16:44,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:16:44,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:16:44,956 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:16:44,956 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:16:44,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2024-11-19 03:16:46,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:16:46,968 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:16:46,969 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2024-11-19 03:16:47,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8668934f/36de84535e094783a038c280696f1eed/FLAG7590af324 [2024-11-19 03:16:47,047 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8668934f/36de84535e094783a038c280696f1eed [2024-11-19 03:16:47,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:16:47,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:16:47,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:16:47,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:16:47,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:16:47,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:16:47" (1/1) ... [2024-11-19 03:16:47,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d5332f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:47, skipping insertion in model container [2024-11-19 03:16:47,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:16:47" (1/1) ... [2024-11-19 03:16:47,255 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:16:48,932 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-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i[247200,247213] [2024-11-19 03:16:49,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:16:49,073 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:16:49,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6103] [2024-11-19 03:16:49,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6111-6112] [2024-11-19 03:16:49,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6119] [2024-11-19 03:16:49,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/exper_fp/inst/current/envs/linux-3.10-rc1.tar/linux-3.10-rc1/arch/x86/include/asm/paravirt.h"), "i" (824), "i" (12UL)); [6179-6180] [2024-11-19 03:16:49,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6185-6187] [2024-11-19 03:16:49,398 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-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i[247200,247213] [2024-11-19 03:16:49,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:16:49,524 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:16:49,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49 WrapperNode [2024-11-19 03:16:49,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:16:49,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:16:49,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:16:49,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:16:49,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:49,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:49,720 INFO L138 Inliner]: procedures = 216, calls = 1507, calls flagged for inlining = 108, calls inlined = 97, statements flattened = 3479 [2024-11-19 03:16:49,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:16:49,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:16:49,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:16:49,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:16:49,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:49,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:49,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:50,253 INFO L175 MemorySlicer]: Split 587 memory accesses to 18 slices as follows [2, 1, 8, 415, 2, 3, 4, 8, 1, 5, 1, 5, 8, 8, 2, 3, 1, 110]. 71 percent of accesses are in the largest equivalence class. The 129 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 8, 0, 0, 1, 0, 8, 0, 0, 0, 0, 110]. The 239 writes are split as follows [0, 0, 2, 231, 0, 1, 2, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0]. [2024-11-19 03:16:50,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:50,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:50,366 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:50,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:50,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:50,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:50,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:16:50,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:16:50,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:16:50,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:16:50,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (1/1) ... [2024-11-19 03:16:50,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:16:50,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:16:50,532 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 03:16:50,547 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 03:16:50,594 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-19 03:16:50,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-19 03:16:50,594 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2024-11-19 03:16:50,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2024-11-19 03:16:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-19 03:16:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-19 03:16:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-19 03:16:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-19 03:16:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-19 03:16:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-19 03:16:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-19 03:16:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-19 03:16:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-19 03:16:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-19 03:16:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-19 03:16:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-19 03:16:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-19 03:16:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-11-19 03:16:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-11-19 03:16:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-11-19 03:16:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-11-19 03:16:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-11-19 03:16:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2024-11-19 03:16:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2024-11-19 03:16:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:16:50,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:16:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:16:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:16:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:16:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:16:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:16:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:16:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-19 03:16:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-19 03:16:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-19 03:16:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-19 03:16:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-19 03:16:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-19 03:16:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-19 03:16:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-19 03:16:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-19 03:16:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-19 03:16:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2024-11-19 03:16:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2024-11-19 03:16:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2024-11-19 03:16:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2024-11-19 03:16:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:16:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:16:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_iso_mutex_of_ttusb_dec [2024-11-19 03:16:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_iso_mutex_of_ttusb_dec [2024-11-19 03:16:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2024-11-19 03:16:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2024-11-19 03:16:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-19 03:16:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-19 03:16:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:16:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:16:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_usb_mutex_of_ttusb_dec [2024-11-19 03:16:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_usb_mutex_of_ttusb_dec [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2024-11-19 03:16:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-19 03:16:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2024-11-19 03:16:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-19 03:16:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:16:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:16:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:16:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:16:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:16:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:16:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-19 03:16:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-19 03:16:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-19 03:16:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-19 03:16:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-19 03:16:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-19 03:16:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-19 03:16:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-19 03:16:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-19 03:16:50,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-19 03:16:50,609 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-19 03:16:50,609 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-19 03:16:50,609 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-19 03:16:50,609 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-19 03:16:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:16:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 03:16:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 03:16:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 03:16:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 03:16:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-19 03:16:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-19 03:16:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-19 03:16:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-19 03:16:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-19 03:16:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-19 03:16:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 03:16:50,613 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 03:16:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-19 03:16:50,613 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-19 03:16:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-19 03:16:50,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-19 03:16:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-19 03:16:50,613 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-19 03:16:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-19 03:16:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-19 03:16:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-11-19 03:16:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-11-19 03:16:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-19 03:16:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-19 03:16:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-19 03:16:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-19 03:16:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2024-11-19 03:16:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2024-11-19 03:16:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2024-11-19 03:16:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2024-11-19 03:16:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2024-11-19 03:16:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2024-11-19 03:16:50,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-19 03:16:50,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2024-11-19 03:16:50,615 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-19 03:16:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-19 03:16:50,616 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-19 03:16:50,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-19 03:16:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:16:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:16:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:16:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:16:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:16:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:16:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:16:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:16:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-19 03:16:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-19 03:16:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-19 03:16:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-19 03:16:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-19 03:16:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-19 03:16:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-19 03:16:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-19 03:16:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-19 03:16:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-19 03:16:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2024-11-19 03:16:50,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2024-11-19 03:16:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-19 03:16:50,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-19 03:16:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:16:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:16:50,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:16:50,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:16:50,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:16:50,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:16:50,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:16:50,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:16:50,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 03:16:50,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 03:16:50,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 03:16:50,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 03:16:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 03:16:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 03:16:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-19 03:16:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-19 03:16:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-19 03:16:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-19 03:16:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:16:50,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:16:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:16:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:16:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:16:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:16:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:16:50,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-19 03:16:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-19 03:16:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-11-19 03:16:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-11-19 03:16:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-11-19 03:16:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-11-19 03:16:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-11-19 03:16:50,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2024-11-19 03:16:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2024-11-19 03:16:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2024-11-19 03:16:50,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#17 [2024-11-19 03:16:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:16:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:16:50,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:16:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:16:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:16:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#17 [2024-11-19 03:16:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-19 03:16:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-19 03:16:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-19 03:16:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 03:16:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 03:16:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-19 03:16:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-19 03:16:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2024-11-19 03:16:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2024-11-19 03:16:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:16:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 03:16:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2024-11-19 03:16:50,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2024-11-19 03:16:50,632 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-19 03:16:50,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-19 03:16:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2024-11-19 03:16:50,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2024-11-19 03:16:50,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:16:50,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-19 03:16:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-19 03:16:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-19 03:16:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-19 03:16:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-19 03:16:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-19 03:16:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-19 03:16:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-19 03:16:50,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-19 03:16:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-19 03:16:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_iso_mutex_of_ttusb_dec [2024-11-19 03:16:50,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_iso_mutex_of_ttusb_dec [2024-11-19 03:16:50,636 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:16:50,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:16:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-19 03:16:50,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-19 03:16:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2024-11-19 03:16:50,637 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2024-11-19 03:16:50,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-19 03:16:50,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:16:50,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 03:16:50,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 03:16:50,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:16:50,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:16:51,385 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:16:51,389 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:17:01,344 INFO L? ?]: Removed 1629 outVars from TransFormulas that were not future-live. [2024-11-19 03:17:01,345 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:17:01,391 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:17:01,392 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 03:17:01,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:17:01 BoogieIcfgContainer [2024-11-19 03:17:01,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:17:01,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:17:01,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:17:01,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:17:01,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:16:47" (1/3) ... [2024-11-19 03:17:01,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60abf74e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:17:01, skipping insertion in model container [2024-11-19 03:17:01,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:49" (2/3) ... [2024-11-19 03:17:01,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60abf74e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:17:01, skipping insertion in model container [2024-11-19 03:17:01,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:17:01" (3/3) ... [2024-11-19 03:17:01,403 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2024-11-19 03:17:01,418 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:17:01,419 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:17:01,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:17:01,539 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;@1664ccf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:17:01,539 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:17:01,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 1148 states, 824 states have (on average 1.3143203883495145) internal successors, (1083), 844 states have internal predecessors, (1083), 271 states have call successors, (271), 51 states have call predecessors, (271), 51 states have return successors, (271), 265 states have call predecessors, (271), 271 states have call successors, (271) [2024-11-19 03:17:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-19 03:17:01,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:01,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:01,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:01,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:01,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1718190979, now seen corresponding path program 1 times [2024-11-19 03:17:01,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:01,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612974578] [2024-11-19 03:17:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:01,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:02,372 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 03:17:02,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:02,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612974578] [2024-11-19 03:17:02,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612974578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:02,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:02,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:02,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081512240] [2024-11-19 03:17:02,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:02,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:02,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:02,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:02,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:02,412 INFO L87 Difference]: Start difference. First operand has 1148 states, 824 states have (on average 1.3143203883495145) internal successors, (1083), 844 states have internal predecessors, (1083), 271 states have call successors, (271), 51 states have call predecessors, (271), 51 states have return successors, (271), 265 states have call predecessors, (271), 271 states have call successors, (271) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:17:04,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:17:05,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:05,158 INFO L93 Difference]: Finished difference Result 3411 states and 4927 transitions. [2024-11-19 03:17:05,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:05,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-19 03:17:05,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:05,206 INFO L225 Difference]: With dead ends: 3411 [2024-11-19 03:17:05,206 INFO L226 Difference]: Without dead ends: 2260 [2024-11-19 03:17:05,224 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 03:17:05,230 INFO L432 NwaCegarLoop]: 1696 mSDtfsCounter, 1601 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:05,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 3266 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 03:17:05,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2024-11-19 03:17:05,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2255. [2024-11-19 03:17:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 1624 states have (on average 1.3029556650246306) internal successors, (2116), 1655 states have internal predecessors, (2116), 531 states have call successors, (531), 101 states have call predecessors, (531), 99 states have return successors, (532), 508 states have call predecessors, (532), 520 states have call successors, (532) [2024-11-19 03:17:05,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3179 transitions. [2024-11-19 03:17:05,485 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3179 transitions. Word has length 9 [2024-11-19 03:17:05,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:05,487 INFO L471 AbstractCegarLoop]: Abstraction has 2255 states and 3179 transitions. [2024-11-19 03:17:05,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:17:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3179 transitions. [2024-11-19 03:17:05,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-19 03:17:05,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:05,488 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:05,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:17:05,489 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:05,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:05,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1724816693, now seen corresponding path program 1 times [2024-11-19 03:17:05,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:05,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576500343] [2024-11-19 03:17:05,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:05,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:05,908 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 03:17:05,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:05,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576500343] [2024-11-19 03:17:05,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576500343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:05,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:05,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:05,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334561705] [2024-11-19 03:17:05,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:05,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:05,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:05,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:05,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:05,914 INFO L87 Difference]: Start difference. First operand 2255 states and 3179 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:17:07,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:17:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:07,700 INFO L93 Difference]: Finished difference Result 2257 states and 3180 transitions. [2024-11-19 03:17:07,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:07,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-19 03:17:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:07,716 INFO L225 Difference]: With dead ends: 2257 [2024-11-19 03:17:07,716 INFO L226 Difference]: Without dead ends: 2254 [2024-11-19 03:17:07,718 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 03:17:07,719 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 1593 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:07,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 1599 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-19 03:17:07,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2024-11-19 03:17:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2254. [2024-11-19 03:17:07,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 1624 states have (on average 1.3023399014778325) internal successors, (2115), 1654 states have internal predecessors, (2115), 530 states have call successors, (530), 101 states have call predecessors, (530), 99 states have return successors, (532), 508 states have call predecessors, (532), 520 states have call successors, (532) [2024-11-19 03:17:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3177 transitions. [2024-11-19 03:17:07,866 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3177 transitions. Word has length 10 [2024-11-19 03:17:07,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:07,866 INFO L471 AbstractCegarLoop]: Abstraction has 2254 states and 3177 transitions. [2024-11-19 03:17:07,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:17:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3177 transitions. [2024-11-19 03:17:07,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 03:17:07,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:07,867 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:07,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:17:07,868 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:07,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:07,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1930208960, now seen corresponding path program 1 times [2024-11-19 03:17:07,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:07,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961578824] [2024-11-19 03:17:07,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:07,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:08,203 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 03:17:08,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:08,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961578824] [2024-11-19 03:17:08,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961578824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:08,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:08,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:08,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877598104] [2024-11-19 03:17:08,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:08,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:08,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:08,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:08,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:08,206 INFO L87 Difference]: Start difference. First operand 2254 states and 3177 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:17:12,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:17:12,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:12,365 INFO L93 Difference]: Finished difference Result 2256 states and 3178 transitions. [2024-11-19 03:17:12,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:12,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-19 03:17:12,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:12,378 INFO L225 Difference]: With dead ends: 2256 [2024-11-19 03:17:12,379 INFO L226 Difference]: Without dead ends: 2253 [2024-11-19 03:17:12,380 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 03:17:12,382 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 1590 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:12,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 1597 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:17:12,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2024-11-19 03:17:12,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2253. [2024-11-19 03:17:12,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2253 states, 1624 states have (on average 1.3017241379310345) internal successors, (2114), 1653 states have internal predecessors, (2114), 529 states have call successors, (529), 101 states have call predecessors, (529), 99 states have return successors, (532), 508 states have call predecessors, (532), 520 states have call successors, (532) [2024-11-19 03:17:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 3175 transitions. [2024-11-19 03:17:12,509 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 3175 transitions. Word has length 11 [2024-11-19 03:17:12,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:12,510 INFO L471 AbstractCegarLoop]: Abstraction has 2253 states and 3175 transitions. [2024-11-19 03:17:12,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:17:12,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 3175 transitions. [2024-11-19 03:17:12,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 03:17:12,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:12,511 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:12,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:17:12,511 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:12,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash 292570222, now seen corresponding path program 1 times [2024-11-19 03:17:12,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:12,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328750011] [2024-11-19 03:17:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:12,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:12,859 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 03:17:12,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:12,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328750011] [2024-11-19 03:17:12,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328750011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:12,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:12,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:12,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482082563] [2024-11-19 03:17:12,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:12,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:12,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:12,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:12,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:12,862 INFO L87 Difference]: Start difference. First operand 2253 states and 3175 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:17:14,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:17:15,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:15,181 INFO L93 Difference]: Finished difference Result 6714 states and 9573 transitions. [2024-11-19 03:17:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:15,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-19 03:17:15,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:15,211 INFO L225 Difference]: With dead ends: 6714 [2024-11-19 03:17:15,211 INFO L226 Difference]: Without dead ends: 4459 [2024-11-19 03:17:15,224 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 03:17:15,226 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 1595 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 3221 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:15,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 3221 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 03:17:15,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4459 states. [2024-11-19 03:17:15,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4459 to 4437. [2024-11-19 03:17:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3207 states have (on average 1.3027751792952915) internal successors, (4178), 3263 states have internal predecessors, (4178), 1034 states have call successors, (1034), 198 states have call predecessors, (1034), 195 states have return successors, (1098), 995 states have call predecessors, (1098), 1022 states have call successors, (1098) [2024-11-19 03:17:15,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 6310 transitions. [2024-11-19 03:17:15,465 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 6310 transitions. Word has length 12 [2024-11-19 03:17:15,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:15,465 INFO L471 AbstractCegarLoop]: Abstraction has 4437 states and 6310 transitions. [2024-11-19 03:17:15,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:17:15,466 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 6310 transitions. [2024-11-19 03:17:15,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 03:17:15,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:15,480 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:15,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:17:15,481 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:15,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:15,482 INFO L85 PathProgramCache]: Analyzing trace with hash 24235152, now seen corresponding path program 1 times [2024-11-19 03:17:15,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:15,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251051729] [2024-11-19 03:17:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:15,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 03:17:16,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:16,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251051729] [2024-11-19 03:17:16,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251051729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:16,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:16,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:16,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164987087] [2024-11-19 03:17:16,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:16,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:16,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:16,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:16,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:16,088 INFO L87 Difference]: Start difference. First operand 4437 states and 6310 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 03:17:16,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:16,303 INFO L93 Difference]: Finished difference Result 8918 states and 12688 transitions. [2024-11-19 03:17:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:16,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2024-11-19 03:17:16,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:16,339 INFO L225 Difference]: With dead ends: 8918 [2024-11-19 03:17:16,340 INFO L226 Difference]: Without dead ends: 4484 [2024-11-19 03:17:16,364 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 03:17:16,365 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 433 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:16,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 2662 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:16,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2024-11-19 03:17:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4473. [2024-11-19 03:17:16,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4473 states, 3243 states have (on average 1.3040394696268887) internal successors, (4229), 3299 states have internal predecessors, (4229), 1034 states have call successors, (1034), 198 states have call predecessors, (1034), 195 states have return successors, (1098), 995 states have call predecessors, (1098), 1022 states have call successors, (1098) [2024-11-19 03:17:16,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4473 states to 4473 states and 6361 transitions. [2024-11-19 03:17:16,715 INFO L78 Accepts]: Start accepts. Automaton has 4473 states and 6361 transitions. Word has length 138 [2024-11-19 03:17:16,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:16,716 INFO L471 AbstractCegarLoop]: Abstraction has 4473 states and 6361 transitions. [2024-11-19 03:17:16,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-19 03:17:16,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4473 states and 6361 transitions. [2024-11-19 03:17:16,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-19 03:17:16,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:16,725 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:16,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:17:16,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:16,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:16,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1529985107, now seen corresponding path program 1 times [2024-11-19 03:17:16,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:16,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211541989] [2024-11-19 03:17:16,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:16,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 03:17:17,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:17,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211541989] [2024-11-19 03:17:17,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211541989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:17,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:17,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:17,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013535782] [2024-11-19 03:17:17,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:17,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:17,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:17,284 INFO L87 Difference]: Start difference. First operand 4473 states and 6361 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 03:17:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:17,481 INFO L93 Difference]: Finished difference Result 8723 states and 12399 transitions. [2024-11-19 03:17:17,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:17,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 158 [2024-11-19 03:17:17,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:17,511 INFO L225 Difference]: With dead ends: 8723 [2024-11-19 03:17:17,511 INFO L226 Difference]: Without dead ends: 4253 [2024-11-19 03:17:17,534 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 03:17:17,534 INFO L432 NwaCegarLoop]: 1513 mSDtfsCounter, 1473 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:17,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 1513 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:17,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2024-11-19 03:17:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4253. [2024-11-19 03:17:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4253 states, 3063 states have (on average 1.2997061704211557) internal successors, (3981), 3119 states have internal predecessors, (3981), 994 states have call successors, (994), 198 states have call predecessors, (994), 195 states have return successors, (1054), 955 states have call predecessors, (1054), 982 states have call successors, (1054) [2024-11-19 03:17:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 6029 transitions. [2024-11-19 03:17:17,819 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 6029 transitions. Word has length 158 [2024-11-19 03:17:17,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:17,820 INFO L471 AbstractCegarLoop]: Abstraction has 4253 states and 6029 transitions. [2024-11-19 03:17:17,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 03:17:17,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 6029 transitions. [2024-11-19 03:17:17,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-19 03:17:17,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:17,825 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:17,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:17:17,825 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:17,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash -710117187, now seen corresponding path program 1 times [2024-11-19 03:17:17,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:17,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455972948] [2024-11-19 03:17:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:17,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:18,388 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-19 03:17:18,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:18,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455972948] [2024-11-19 03:17:18,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455972948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:18,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:18,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 03:17:18,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897663241] [2024-11-19 03:17:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:18,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:17:18,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:18,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:17:18,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 03:17:18,392 INFO L87 Difference]: Start difference. First operand 4253 states and 6029 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 03:17:18,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:18,671 INFO L93 Difference]: Finished difference Result 8519 states and 12074 transitions. [2024-11-19 03:17:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:17:18,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 174 [2024-11-19 03:17:18,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:18,702 INFO L225 Difference]: With dead ends: 8519 [2024-11-19 03:17:18,702 INFO L226 Difference]: Without dead ends: 4263 [2024-11-19 03:17:18,723 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 03:17:18,725 INFO L432 NwaCegarLoop]: 1514 mSDtfsCounter, 0 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4534 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:18,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4534 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:18,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4263 states. [2024-11-19 03:17:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4263 to 4263. [2024-11-19 03:17:18,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4263 states, 3074 states have (on average 1.2983083929733246) internal successors, (3991), 3130 states have internal predecessors, (3991), 993 states have call successors, (993), 198 states have call predecessors, (993), 195 states have return successors, (1053), 954 states have call predecessors, (1053), 981 states have call successors, (1053) [2024-11-19 03:17:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4263 states to 4263 states and 6037 transitions. [2024-11-19 03:17:18,978 INFO L78 Accepts]: Start accepts. Automaton has 4263 states and 6037 transitions. Word has length 174 [2024-11-19 03:17:18,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:18,978 INFO L471 AbstractCegarLoop]: Abstraction has 4263 states and 6037 transitions. [2024-11-19 03:17:18,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 03:17:18,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4263 states and 6037 transitions. [2024-11-19 03:17:18,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-19 03:17:18,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:18,982 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:18,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:17:18,983 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:18,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:18,983 INFO L85 PathProgramCache]: Analyzing trace with hash -27742882, now seen corresponding path program 1 times [2024-11-19 03:17:18,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:18,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678232676] [2024-11-19 03:17:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:18,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-19 03:17:19,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:19,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678232676] [2024-11-19 03:17:19,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678232676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:19,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:19,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:19,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561915021] [2024-11-19 03:17:19,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:19,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:19,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:19,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:19,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:19,612 INFO L87 Difference]: Start difference. First operand 4263 states and 6037 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 03:17:22,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:17:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:22,499 INFO L93 Difference]: Finished difference Result 8535 states and 12106 transitions. [2024-11-19 03:17:22,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:22,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 173 [2024-11-19 03:17:22,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:22,551 INFO L225 Difference]: With dead ends: 8535 [2024-11-19 03:17:22,555 INFO L226 Difference]: Without dead ends: 4275 [2024-11-19 03:17:22,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 03:17:22,582 INFO L432 NwaCegarLoop]: 2872 mSDtfsCounter, 1481 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:22,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 4374 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-19 03:17:22,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2024-11-19 03:17:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4261. [2024-11-19 03:17:22,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4261 states, 3072 states have (on average 1.2972005208333333) internal successors, (3985), 3129 states have internal predecessors, (3985), 993 states have call successors, (993), 198 states have call predecessors, (993), 195 states have return successors, (1029), 953 states have call predecessors, (1029), 981 states have call successors, (1029) [2024-11-19 03:17:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4261 states to 4261 states and 6007 transitions. [2024-11-19 03:17:22,921 INFO L78 Accepts]: Start accepts. Automaton has 4261 states and 6007 transitions. Word has length 173 [2024-11-19 03:17:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:22,923 INFO L471 AbstractCegarLoop]: Abstraction has 4261 states and 6007 transitions. [2024-11-19 03:17:22,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 03:17:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand 4261 states and 6007 transitions. [2024-11-19 03:17:22,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-19 03:17:22,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:22,927 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:22,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:17:22,928 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:22,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:22,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1833181216, now seen corresponding path program 1 times [2024-11-19 03:17:22,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:22,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675707560] [2024-11-19 03:17:22,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:22,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:23,597 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-19 03:17:23,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:23,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675707560] [2024-11-19 03:17:23,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675707560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:23,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:23,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:17:23,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851919937] [2024-11-19 03:17:23,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:23,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:17:23,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:23,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:17:23,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:23,600 INFO L87 Difference]: Start difference. First operand 4261 states and 6007 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 03:17:23,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:23,862 INFO L93 Difference]: Finished difference Result 8531 states and 12027 transitions. [2024-11-19 03:17:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:17:23,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 173 [2024-11-19 03:17:23,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:23,889 INFO L225 Difference]: With dead ends: 8531 [2024-11-19 03:17:23,889 INFO L226 Difference]: Without dead ends: 4273 [2024-11-19 03:17:23,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:23,903 INFO L432 NwaCegarLoop]: 1513 mSDtfsCounter, 0 mSDsluCounter, 4531 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6044 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:23,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6044 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:23,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2024-11-19 03:17:24,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 4273. [2024-11-19 03:17:24,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4273 states, 3084 states have (on average 1.2960440985732815) internal successors, (3997), 3141 states have internal predecessors, (3997), 993 states have call successors, (993), 198 states have call predecessors, (993), 195 states have return successors, (1029), 953 states have call predecessors, (1029), 981 states have call successors, (1029) [2024-11-19 03:17:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4273 states to 4273 states and 6019 transitions. [2024-11-19 03:17:24,108 INFO L78 Accepts]: Start accepts. Automaton has 4273 states and 6019 transitions. Word has length 173 [2024-11-19 03:17:24,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:24,109 INFO L471 AbstractCegarLoop]: Abstraction has 4273 states and 6019 transitions. [2024-11-19 03:17:24,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 03:17:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4273 states and 6019 transitions. [2024-11-19 03:17:24,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-19 03:17:24,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:24,112 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:24,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 03:17:24,113 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:24,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:24,113 INFO L85 PathProgramCache]: Analyzing trace with hash 579574492, now seen corresponding path program 1 times [2024-11-19 03:17:24,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:24,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867235073] [2024-11-19 03:17:24,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:24,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:24,591 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-19 03:17:24,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:24,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867235073] [2024-11-19 03:17:24,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867235073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:24,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:24,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:24,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307278758] [2024-11-19 03:17:24,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:24,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:24,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:24,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:24,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:24,594 INFO L87 Difference]: Start difference. First operand 4273 states and 6019 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 03:17:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:24,874 INFO L93 Difference]: Finished difference Result 8571 states and 12079 transitions. [2024-11-19 03:17:24,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:24,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 182 [2024-11-19 03:17:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:24,905 INFO L225 Difference]: With dead ends: 8571 [2024-11-19 03:17:24,905 INFO L226 Difference]: Without dead ends: 4301 [2024-11-19 03:17:24,920 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 03:17:24,921 INFO L432 NwaCegarLoop]: 1515 mSDtfsCounter, 4 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:24,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3025 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:24,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2024-11-19 03:17:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4277. [2024-11-19 03:17:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4277 states, 3088 states have (on average 1.295660621761658) internal successors, (4001), 3145 states have internal predecessors, (4001), 993 states have call successors, (993), 198 states have call predecessors, (993), 195 states have return successors, (1029), 953 states have call predecessors, (1029), 981 states have call successors, (1029) [2024-11-19 03:17:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 6023 transitions. [2024-11-19 03:17:25,153 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 6023 transitions. Word has length 182 [2024-11-19 03:17:25,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:25,153 INFO L471 AbstractCegarLoop]: Abstraction has 4277 states and 6023 transitions. [2024-11-19 03:17:25,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-19 03:17:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 6023 transitions. [2024-11-19 03:17:25,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-19 03:17:25,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:25,158 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:25,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 03:17:25,158 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:25,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:25,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1338223148, now seen corresponding path program 1 times [2024-11-19 03:17:25,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:25,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363079020] [2024-11-19 03:17:25,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:25,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 03:17:25,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:25,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363079020] [2024-11-19 03:17:25,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363079020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:17:25,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974174526] [2024-11-19 03:17:25,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:25,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:25,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:25,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:17:25,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:17:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:26,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 03:17:26,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:17:26,990 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-19 03:17:26,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:17:26,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974174526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:26,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:17:26,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:17:26,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046732042] [2024-11-19 03:17:26,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:26,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:26,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:26,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:26,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:26,993 INFO L87 Difference]: Start difference. First operand 4277 states and 6023 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 03:17:27,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:27,423 INFO L93 Difference]: Finished difference Result 8567 states and 12083 transitions. [2024-11-19 03:17:27,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:27,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 195 [2024-11-19 03:17:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:27,453 INFO L225 Difference]: With dead ends: 8567 [2024-11-19 03:17:27,453 INFO L226 Difference]: Without dead ends: 4293 [2024-11-19 03:17:27,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:27,469 INFO L432 NwaCegarLoop]: 1513 mSDtfsCounter, 4 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:27,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3023 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:17:27,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4293 states. [2024-11-19 03:17:27,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4293 to 4281. [2024-11-19 03:17:27,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 3092 states have (on average 1.2952781371280724) internal successors, (4005), 3149 states have internal predecessors, (4005), 993 states have call successors, (993), 198 states have call predecessors, (993), 195 states have return successors, (1029), 953 states have call predecessors, (1029), 981 states have call successors, (1029) [2024-11-19 03:17:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 6027 transitions. [2024-11-19 03:17:27,799 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 6027 transitions. Word has length 195 [2024-11-19 03:17:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:27,800 INFO L471 AbstractCegarLoop]: Abstraction has 4281 states and 6027 transitions. [2024-11-19 03:17:27,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 03:17:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 6027 transitions. [2024-11-19 03:17:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-19 03:17:27,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:27,804 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:27,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 03:17:28,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-19 03:17:28,010 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:28,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash 974513498, now seen corresponding path program 1 times [2024-11-19 03:17:28,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:28,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784801513] [2024-11-19 03:17:28,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:28,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 03:17:28,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:28,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784801513] [2024-11-19 03:17:28,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784801513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:17:28,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828612517] [2024-11-19 03:17:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:28,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:28,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:28,641 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:17:28,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 03:17:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:29,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 03:17:29,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:17:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-19 03:17:29,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:17:29,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828612517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:29,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:17:29,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:17:29,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210419278] [2024-11-19 03:17:29,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:29,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:29,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:29,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:29,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:29,941 INFO L87 Difference]: Start difference. First operand 4281 states and 6027 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 03:17:30,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:30,171 INFO L93 Difference]: Finished difference Result 8567 states and 12079 transitions. [2024-11-19 03:17:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:30,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 198 [2024-11-19 03:17:30,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:30,195 INFO L225 Difference]: With dead ends: 8567 [2024-11-19 03:17:30,195 INFO L226 Difference]: Without dead ends: 4289 [2024-11-19 03:17:30,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:30,210 INFO L432 NwaCegarLoop]: 1514 mSDtfsCounter, 1 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:30,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3025 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:30,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2024-11-19 03:17:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4285. [2024-11-19 03:17:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4285 states, 3096 states have (on average 1.2948966408268734) internal successors, (4009), 3153 states have internal predecessors, (4009), 993 states have call successors, (993), 198 states have call predecessors, (993), 195 states have return successors, (1029), 953 states have call predecessors, (1029), 981 states have call successors, (1029) [2024-11-19 03:17:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4285 states to 4285 states and 6031 transitions. [2024-11-19 03:17:30,435 INFO L78 Accepts]: Start accepts. Automaton has 4285 states and 6031 transitions. Word has length 198 [2024-11-19 03:17:30,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:30,436 INFO L471 AbstractCegarLoop]: Abstraction has 4285 states and 6031 transitions. [2024-11-19 03:17:30,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 03:17:30,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4285 states and 6031 transitions. [2024-11-19 03:17:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-19 03:17:30,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:30,440 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:30,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 03:17:30,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 03:17:30,642 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:30,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1797891618, now seen corresponding path program 1 times [2024-11-19 03:17:30,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:30,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229053272] [2024-11-19 03:17:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:30,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-19 03:17:31,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:31,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229053272] [2024-11-19 03:17:31,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229053272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:17:31,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268279014] [2024-11-19 03:17:31,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:31,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:31,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:31,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:17:31,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 03:17:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:32,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 2626 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:17:32,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:17:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-19 03:17:32,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:17:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-19 03:17:32,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268279014] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 03:17:32,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 03:17:32,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 03:17:32,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51891588] [2024-11-19 03:17:32,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 03:17:32,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 03:17:32,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:32,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 03:17:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:17:32,821 INFO L87 Difference]: Start difference. First operand 4285 states and 6031 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-19 03:17:33,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:33,062 INFO L93 Difference]: Finished difference Result 8655 states and 12195 transitions. [2024-11-19 03:17:33,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:17:33,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 200 [2024-11-19 03:17:33,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:33,091 INFO L225 Difference]: With dead ends: 8655 [2024-11-19 03:17:33,091 INFO L226 Difference]: Without dead ends: 4373 [2024-11-19 03:17:33,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:17:33,105 INFO L432 NwaCegarLoop]: 1515 mSDtfsCounter, 20 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:33,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3032 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:33,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2024-11-19 03:17:33,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4333. [2024-11-19 03:17:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4333 states, 3132 states have (on average 1.2953384418901661) internal successors, (4057), 3189 states have internal predecessors, (4057), 1005 states have call successors, (1005), 198 states have call predecessors, (1005), 195 states have return successors, (1041), 965 states have call predecessors, (1041), 993 states have call successors, (1041) [2024-11-19 03:17:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4333 states to 4333 states and 6103 transitions. [2024-11-19 03:17:33,342 INFO L78 Accepts]: Start accepts. Automaton has 4333 states and 6103 transitions. Word has length 200 [2024-11-19 03:17:33,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:33,343 INFO L471 AbstractCegarLoop]: Abstraction has 4333 states and 6103 transitions. [2024-11-19 03:17:33,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 5 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2024-11-19 03:17:33,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4333 states and 6103 transitions. [2024-11-19 03:17:33,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-19 03:17:33,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:33,348 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:33,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 03:17:33,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:33,549 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:33,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:33,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1434741970, now seen corresponding path program 2 times [2024-11-19 03:17:33,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:33,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131211773] [2024-11-19 03:17:33,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:17:33,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:33,804 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 03:17:33,804 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 03:17:34,049 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-19 03:17:34,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:34,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131211773] [2024-11-19 03:17:34,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131211773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:34,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:34,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:17:34,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931336530] [2024-11-19 03:17:34,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:34,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:17:34,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:34,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:17:34,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:34,052 INFO L87 Difference]: Start difference. First operand 4333 states and 6103 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 03:17:34,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:34,244 INFO L93 Difference]: Finished difference Result 4357 states and 6124 transitions. [2024-11-19 03:17:34,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:17:34,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 239 [2024-11-19 03:17:34,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:34,268 INFO L225 Difference]: With dead ends: 4357 [2024-11-19 03:17:34,268 INFO L226 Difference]: Without dead ends: 4251 [2024-11-19 03:17:34,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:34,272 INFO L432 NwaCegarLoop]: 1519 mSDtfsCounter, 2 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6053 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:34,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6053 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:17:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2024-11-19 03:17:34,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4251. [2024-11-19 03:17:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 3078 states have (on average 1.293372319688109) internal successors, (3981), 3129 states have internal predecessors, (3981), 977 states have call successors, (977), 197 states have call predecessors, (977), 195 states have return successors, (1017), 944 states have call predecessors, (1017), 969 states have call successors, (1017) [2024-11-19 03:17:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 5975 transitions. [2024-11-19 03:17:34,482 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 5975 transitions. Word has length 239 [2024-11-19 03:17:34,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:34,485 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 5975 transitions. [2024-11-19 03:17:34,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 03:17:34,485 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 5975 transitions. [2024-11-19 03:17:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-19 03:17:34,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:34,491 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:34,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 03:17:34,492 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:34,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:34,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1625836098, now seen corresponding path program 1 times [2024-11-19 03:17:34,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:34,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959634005] [2024-11-19 03:17:34,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:34,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-19 03:17:34,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:34,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959634005] [2024-11-19 03:17:34,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959634005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:34,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:34,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:34,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027002391] [2024-11-19 03:17:34,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:34,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:34,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:34,960 INFO L87 Difference]: Start difference. First operand 4251 states and 5975 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-19 03:17:35,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:35,270 INFO L93 Difference]: Finished difference Result 8515 states and 11979 transitions. [2024-11-19 03:17:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:35,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 263 [2024-11-19 03:17:35,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:35,306 INFO L225 Difference]: With dead ends: 8515 [2024-11-19 03:17:35,306 INFO L226 Difference]: Without dead ends: 4267 [2024-11-19 03:17:35,323 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 03:17:35,324 INFO L432 NwaCegarLoop]: 1511 mSDtfsCounter, 2 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:35,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3019 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:35,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2024-11-19 03:17:35,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4255. [2024-11-19 03:17:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4255 states, 3082 states have (on average 1.2929915639195328) internal successors, (3985), 3133 states have internal predecessors, (3985), 977 states have call successors, (977), 197 states have call predecessors, (977), 195 states have return successors, (1017), 944 states have call predecessors, (1017), 969 states have call successors, (1017) [2024-11-19 03:17:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 5979 transitions. [2024-11-19 03:17:35,649 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 5979 transitions. Word has length 263 [2024-11-19 03:17:35,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:35,650 INFO L471 AbstractCegarLoop]: Abstraction has 4255 states and 5979 transitions. [2024-11-19 03:17:35,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-19 03:17:35,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 5979 transitions. [2024-11-19 03:17:35,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-19 03:17:35,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:35,659 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:35,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 03:17:35,659 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:35,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:35,660 INFO L85 PathProgramCache]: Analyzing trace with hash -286061065, now seen corresponding path program 1 times [2024-11-19 03:17:35,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:35,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710318138] [2024-11-19 03:17:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:35,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-19 03:17:36,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:36,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710318138] [2024-11-19 03:17:36,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710318138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:17:36,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210122794] [2024-11-19 03:17:36,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:36,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:36,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:36,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:17:36,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 03:17:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:37,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 2765 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 03:17:37,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:17:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-19 03:17:37,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:17:37,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210122794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:37,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:17:37,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:17:37,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312157947] [2024-11-19 03:17:37,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:37,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:37,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:37,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:37,619 INFO L87 Difference]: Start difference. First operand 4255 states and 5979 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-19 03:17:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:37,792 INFO L93 Difference]: Finished difference Result 8523 states and 11995 transitions. [2024-11-19 03:17:37,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:37,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 270 [2024-11-19 03:17:37,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:37,938 INFO L225 Difference]: With dead ends: 8523 [2024-11-19 03:17:37,938 INFO L226 Difference]: Without dead ends: 4271 [2024-11-19 03:17:37,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:37,948 INFO L432 NwaCegarLoop]: 1511 mSDtfsCounter, 2 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:37,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3019 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:37,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2024-11-19 03:17:38,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 4259. [2024-11-19 03:17:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4259 states, 3086 states have (on average 1.2926117952041478) internal successors, (3989), 3137 states have internal predecessors, (3989), 977 states have call successors, (977), 197 states have call predecessors, (977), 195 states have return successors, (1017), 944 states have call predecessors, (1017), 969 states have call successors, (1017) [2024-11-19 03:17:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4259 states to 4259 states and 5983 transitions. [2024-11-19 03:17:38,157 INFO L78 Accepts]: Start accepts. Automaton has 4259 states and 5983 transitions. Word has length 270 [2024-11-19 03:17:38,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:38,158 INFO L471 AbstractCegarLoop]: Abstraction has 4259 states and 5983 transitions. [2024-11-19 03:17:38,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-19 03:17:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4259 states and 5983 transitions. [2024-11-19 03:17:38,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-19 03:17:38,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:38,166 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:38,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 03:17:38,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 03:17:38,367 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:38,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash 496808436, now seen corresponding path program 1 times [2024-11-19 03:17:38,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:38,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173485798] [2024-11-19 03:17:38,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:38,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-19 03:17:38,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:38,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173485798] [2024-11-19 03:17:38,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173485798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:17:38,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795324101] [2024-11-19 03:17:38,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:38,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:38,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:38,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:17:38,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 03:17:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:40,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 2784 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:17:40,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:17:40,283 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-19 03:17:40,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:17:40,501 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-19 03:17:40,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795324101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 03:17:40,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 03:17:40,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 03:17:40,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181514681] [2024-11-19 03:17:40,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 03:17:40,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 03:17:40,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:40,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 03:17:40,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:17:40,505 INFO L87 Difference]: Start difference. First operand 4259 states and 5983 transitions. Second operand has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 5 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) [2024-11-19 03:17:40,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:40,705 INFO L93 Difference]: Finished difference Result 8563 states and 12043 transitions. [2024-11-19 03:17:40,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:17:40,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 5 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) Word has length 277 [2024-11-19 03:17:40,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:40,737 INFO L225 Difference]: With dead ends: 8563 [2024-11-19 03:17:40,737 INFO L226 Difference]: Without dead ends: 4307 [2024-11-19 03:17:40,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:17:40,753 INFO L432 NwaCegarLoop]: 1511 mSDtfsCounter, 4 mSDsluCounter, 4521 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6032 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:40,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6032 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:40,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2024-11-19 03:17:41,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4307. [2024-11-19 03:17:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 3122 states have (on average 1.289237668161435) internal successors, (4025), 3173 states have internal predecessors, (4025), 989 states have call successors, (989), 197 states have call predecessors, (989), 195 states have return successors, (1029), 956 states have call predecessors, (1029), 981 states have call successors, (1029) [2024-11-19 03:17:41,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 6043 transitions. [2024-11-19 03:17:41,050 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 6043 transitions. Word has length 277 [2024-11-19 03:17:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:41,050 INFO L471 AbstractCegarLoop]: Abstraction has 4307 states and 6043 transitions. [2024-11-19 03:17:41,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 7 states have internal predecessors, (228), 5 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 5 states have call predecessors, (41), 5 states have call successors, (41) [2024-11-19 03:17:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 6043 transitions. [2024-11-19 03:17:41,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-11-19 03:17:41,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:41,061 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:41,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 03:17:41,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 03:17:41,262 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:41,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:41,263 INFO L85 PathProgramCache]: Analyzing trace with hash 373039245, now seen corresponding path program 2 times [2024-11-19 03:17:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:41,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662384654] [2024-11-19 03:17:41,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:17:41,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:41,508 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 03:17:41,509 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 03:17:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-19 03:17:41,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:41,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662384654] [2024-11-19 03:17:41,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662384654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:41,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:41,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:17:41,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276781849] [2024-11-19 03:17:41,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:41,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:41,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:41,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:41,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:17:41,664 INFO L87 Difference]: Start difference. First operand 4307 states and 6043 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-19 03:17:44,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:17:44,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:44,631 INFO L93 Difference]: Finished difference Result 8616 states and 12087 transitions. [2024-11-19 03:17:44,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:44,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 298 [2024-11-19 03:17:44,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:44,659 INFO L225 Difference]: With dead ends: 8616 [2024-11-19 03:17:44,660 INFO L226 Difference]: Without dead ends: 4312 [2024-11-19 03:17:44,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 03:17:44,675 INFO L432 NwaCegarLoop]: 2917 mSDtfsCounter, 1477 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 4419 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:44,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 4419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 03:17:44,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4312 states. [2024-11-19 03:17:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4312 to 4294. [2024-11-19 03:17:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4294 states, 3111 states have (on average 1.2886531661845066) internal successors, (4009), 3164 states have internal predecessors, (4009), 987 states have call successors, (987), 196 states have call predecessors, (987), 195 states have return successors, (1005), 953 states have call predecessors, (1005), 969 states have call successors, (1005) [2024-11-19 03:17:44,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 6001 transitions. [2024-11-19 03:17:44,883 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 6001 transitions. Word has length 298 [2024-11-19 03:17:44,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:44,884 INFO L471 AbstractCegarLoop]: Abstraction has 4294 states and 6001 transitions. [2024-11-19 03:17:44,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-19 03:17:44,885 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 6001 transitions. [2024-11-19 03:17:44,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-11-19 03:17:44,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:44,892 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:44,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 03:17:44,893 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:44,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:44,894 INFO L85 PathProgramCache]: Analyzing trace with hash 79636238, now seen corresponding path program 1 times [2024-11-19 03:17:44,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:44,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342276118] [2024-11-19 03:17:44,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:44,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-19 03:17:45,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:45,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342276118] [2024-11-19 03:17:45,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342276118] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:17:45,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652758368] [2024-11-19 03:17:45,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:45,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:45,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:45,570 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:17:45,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 03:17:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:46,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 2840 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:17:46,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:17:47,034 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-19 03:17:47,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:17:47,231 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-19 03:17:47,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652758368] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 03:17:47,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 03:17:47,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-19 03:17:47,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203240607] [2024-11-19 03:17:47,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 03:17:47,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 03:17:47,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:47,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 03:17:47,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:17:47,234 INFO L87 Difference]: Start difference. First operand 4294 states and 6001 transitions. Second operand has 7 states, 7 states have (on average 29.142857142857142) internal successors, (204), 7 states have internal predecessors, (204), 5 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2024-11-19 03:17:47,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:47,406 INFO L93 Difference]: Finished difference Result 8633 states and 12087 transitions. [2024-11-19 03:17:47,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:17:47,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.142857142857142) internal successors, (204), 7 states have internal predecessors, (204), 5 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) Word has length 298 [2024-11-19 03:17:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:47,433 INFO L225 Difference]: With dead ends: 8633 [2024-11-19 03:17:47,433 INFO L226 Difference]: Without dead ends: 4342 [2024-11-19 03:17:47,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:17:47,447 INFO L432 NwaCegarLoop]: 1511 mSDtfsCounter, 4 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:47,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3018 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:47,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4342 states. [2024-11-19 03:17:47,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4342 to 4342. [2024-11-19 03:17:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4342 states, 3147 states have (on average 1.2853511280584684) internal successors, (4045), 3200 states have internal predecessors, (4045), 999 states have call successors, (999), 196 states have call predecessors, (999), 195 states have return successors, (1017), 965 states have call predecessors, (1017), 981 states have call successors, (1017) [2024-11-19 03:17:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 6061 transitions. [2024-11-19 03:17:47,650 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 6061 transitions. Word has length 298 [2024-11-19 03:17:47,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:47,651 INFO L471 AbstractCegarLoop]: Abstraction has 4342 states and 6061 transitions. [2024-11-19 03:17:47,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.142857142857142) internal successors, (204), 7 states have internal predecessors, (204), 5 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2024-11-19 03:17:47,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 6061 transitions. [2024-11-19 03:17:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-19 03:17:47,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:47,658 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:47,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 03:17:47,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:47,859 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:47,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:47,860 INFO L85 PathProgramCache]: Analyzing trace with hash -978585025, now seen corresponding path program 2 times [2024-11-19 03:17:47,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:47,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172285695] [2024-11-19 03:17:47,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:17:47,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:48,073 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 03:17:48,074 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 03:17:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-19 03:17:48,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:48,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172285695] [2024-11-19 03:17:48,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172285695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:48,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:17:48,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 03:17:48,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434076599] [2024-11-19 03:17:48,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:48,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 03:17:48,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:48,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 03:17:48,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:17:48,321 INFO L87 Difference]: Start difference. First operand 4342 states and 6061 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-19 03:17:48,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:48,610 INFO L93 Difference]: Finished difference Result 4353 states and 6069 transitions. [2024-11-19 03:17:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:17:48,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 319 [2024-11-19 03:17:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:48,638 INFO L225 Difference]: With dead ends: 4353 [2024-11-19 03:17:48,638 INFO L226 Difference]: Without dead ends: 4330 [2024-11-19 03:17:48,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:17:48,643 INFO L432 NwaCegarLoop]: 1517 mSDtfsCounter, 0 mSDsluCounter, 6054 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7571 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:48,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7571 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:48,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2024-11-19 03:17:48,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 4330. [2024-11-19 03:17:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4330 states, 3138 states have (on average 1.284257488846399) internal successors, (4030), 3190 states have internal predecessors, (4030), 996 states have call successors, (996), 196 states have call predecessors, (996), 195 states have return successors, (1015), 963 states have call predecessors, (1015), 979 states have call successors, (1015) [2024-11-19 03:17:48,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4330 states to 4330 states and 6041 transitions. [2024-11-19 03:17:48,954 INFO L78 Accepts]: Start accepts. Automaton has 4330 states and 6041 transitions. Word has length 319 [2024-11-19 03:17:48,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:48,956 INFO L471 AbstractCegarLoop]: Abstraction has 4330 states and 6041 transitions. [2024-11-19 03:17:48,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-19 03:17:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4330 states and 6041 transitions. [2024-11-19 03:17:48,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-19 03:17:48,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:48,965 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:48,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 03:17:48,965 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:48,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:48,966 INFO L85 PathProgramCache]: Analyzing trace with hash -327374997, now seen corresponding path program 1 times [2024-11-19 03:17:48,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:48,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905334193] [2024-11-19 03:17:48,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:48,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-19 03:17:49,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:49,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905334193] [2024-11-19 03:17:49,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905334193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:17:49,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437694768] [2024-11-19 03:17:49,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:49,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:49,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:49,663 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:17:49,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 03:17:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:51,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 3252 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:17:51,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:17:51,313 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-19 03:17:51,313 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:17:51,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437694768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:17:51,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:17:51,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 03:17:51,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013664362] [2024-11-19 03:17:51,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:17:51,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:17:51,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:17:51,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:17:51,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:51,316 INFO L87 Difference]: Start difference. First operand 4330 states and 6041 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-19 03:17:51,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:17:51,606 INFO L93 Difference]: Finished difference Result 8665 states and 12091 transitions. [2024-11-19 03:17:51,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:17:51,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 309 [2024-11-19 03:17:51,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:17:51,634 INFO L225 Difference]: With dead ends: 8665 [2024-11-19 03:17:51,635 INFO L226 Difference]: Without dead ends: 4338 [2024-11-19 03:17:51,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:17:51,647 INFO L432 NwaCegarLoop]: 1512 mSDtfsCounter, 0 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:17:51,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3015 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:17:51,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2024-11-19 03:17:51,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 4338. [2024-11-19 03:17:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4338 states, 3146 states have (on average 1.2835346471710107) internal successors, (4038), 3198 states have internal predecessors, (4038), 996 states have call successors, (996), 196 states have call predecessors, (996), 195 states have return successors, (1015), 963 states have call predecessors, (1015), 979 states have call successors, (1015) [2024-11-19 03:17:51,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4338 states to 4338 states and 6049 transitions. [2024-11-19 03:17:51,848 INFO L78 Accepts]: Start accepts. Automaton has 4338 states and 6049 transitions. Word has length 309 [2024-11-19 03:17:51,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:17:51,849 INFO L471 AbstractCegarLoop]: Abstraction has 4338 states and 6049 transitions. [2024-11-19 03:17:51,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-19 03:17:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4338 states and 6049 transitions. [2024-11-19 03:17:51,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-19 03:17:51,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:17:51,857 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:17:51,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 03:17:52,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:52,059 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:17:52,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:17:52,060 INFO L85 PathProgramCache]: Analyzing trace with hash -125551063, now seen corresponding path program 1 times [2024-11-19 03:17:52,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:17:52,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574590475] [2024-11-19 03:17:52,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:52,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:17:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-19 03:17:52,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:17:52,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574590475] [2024-11-19 03:17:52,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574590475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:17:52,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343956469] [2024-11-19 03:17:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:17:52,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:17:52,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:52,603 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:17:52,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 03:17:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:17:54,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 3252 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:17:54,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:17:54,173 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-11-19 03:17:54,174 INFO L311 TraceCheckSpWp]: Computing backward predicates...