./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.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 b615ef3e9ec848bbbdbcac9993fc5d609594ef1caaa279a862c4f038e6ec482e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:56:07,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:56:07,648 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:56:07,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:56:07,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:56:07,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:56:07,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:56:07,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:56:07,699 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:56:07,700 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:56:07,704 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:56:07,704 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:56:07,705 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:56:07,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:56:07,705 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:56:07,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:56:07,706 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:56:07,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:56:07,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:56:07,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:56:07,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:56:07,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:56:07,714 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:56:07,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:56:07,714 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:56:07,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:56:07,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:56:07,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:56:07,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:56:07,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:56:07,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:56:07,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:56:07,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:56:07,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:56:07,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:56:07,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:56:07,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:56:07,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:56:07,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:56:07,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b615ef3e9ec848bbbdbcac9993fc5d609594ef1caaa279a862c4f038e6ec482e [2024-11-19 03:56:07,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:56:08,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:56:08,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:56:08,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:56:08,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:56:08,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2024-11-19 03:56:09,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:56:09,918 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:56:09,918 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2024-11-19 03:56:09,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e6e093a/df39c1b4341e49e9a8d4322550a3d15c/FLAG2393223fb [2024-11-19 03:56:09,969 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e6e093a/df39c1b4341e49e9a8d4322550a3d15c [2024-11-19 03:56:09,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:56:09,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:56:09,974 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:56:09,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:56:09,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:56:09,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:56:09" (1/1) ... [2024-11-19 03:56:09,986 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 03:56:09, skipping insertion in model container [2024-11-19 03:56:09,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:56:09" (1/1) ... [2024-11-19 03:56:10,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:56:11,066 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i[208194,208207] [2024-11-19 03:56:11,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:56:11,145 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:56:11,269 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"); [5300] [2024-11-19 03:56:11,270 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5307] [2024-11-19 03:56:11,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5446] [2024-11-19 03:56:11,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5454] [2024-11-19 03:56:11,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1,%b0": "=a" (_v): "d" (port)); [5637] [2024-11-19 03:56:11,334 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i[208194,208207] [2024-11-19 03:56:11,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:56:11,435 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:56:11,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11 WrapperNode [2024-11-19 03:56:11,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:56:11,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:56:11,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:56:11,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:56:11,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,644 INFO L138 Inliner]: procedures = 152, calls = 711, calls flagged for inlining = 70, calls inlined = 67, statements flattened = 1996 [2024-11-19 03:56:11,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:56:11,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:56:11,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:56:11,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:56:11,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,804 INFO L175 MemorySlicer]: Split 327 memory accesses to 10 slices as follows [2, 6, 23, 209, 61, 3, 4, 4, 11, 4]. 64 percent of accesses are in the largest equivalence class. The 39 initializations are split as follows [2, 0, 23, 0, 0, 2, 2, 2, 8, 0]. The 192 writes are split as follows [0, 4, 0, 125, 61, 0, 0, 0, 0, 2]. [2024-11-19 03:56:11,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,804 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,839 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:56:11,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:56:11,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:56:11,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:56:11,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (1/1) ... [2024-11-19 03:56:11,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:56:11,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:56:11,926 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 03:56:11,929 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 03:56:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure atp_probe1 [2024-11-19 03:56:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_probe1 [2024-11-19 03:56:12,037 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-11-19 03:56:12,037 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-19 03:56:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure read_block [2024-11-19 03:56:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure read_block [2024-11-19 03:56:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:56:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:56:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:56:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:56:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:56:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:56:12,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:56:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:56:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-19 03:56:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-19 03:56:12,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:56:12,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:56:12,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:56:12,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:56:12,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:56:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:56:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:56:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:56:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:56:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:56:12,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 03:56:12,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 03:56:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-19 03:56:12,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-19 03:56:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2024-11-19 03:56:12,048 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2024-11-19 03:56:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-19 03:56:12,048 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-19 03:56:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode0 [2024-11-19 03:56:12,048 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode0 [2024-11-19 03:56:12,048 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode1 [2024-11-19 03:56:12,049 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode1 [2024-11-19 03:56:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-19 03:56:12,049 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-19 03:56:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-19 03:56:12,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-19 03:56:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:56:12,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:56:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-19 03:56:12,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-19 03:56:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2024-11-19 03:56:12,049 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2024-11-19 03:56:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:56:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:56:12,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure net_rx [2024-11-19 03:56:12,050 INFO L138 BoogieDeclarations]: Found implementation of procedure net_rx [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:56:12,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_high [2024-11-19 03:56:12,050 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_high [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-19 03:56:12,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:56:12,050 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:56:12,050 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-19 03:56:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure read_nibble [2024-11-19 03:56:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nibble [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure hardware_init [2024-11-19 03:56:12,051 INFO L138 BoogieDeclarations]: Found implementation of procedure hardware_init [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:56:12,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-19 03:56:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2024-11-19 03:56:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2024-11-19 03:56:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-19 03:56:12,052 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-19 03:56:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-19 03:56:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_byte [2024-11-19 03:56:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_byte [2024-11-19 03:56:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-19 03:56:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-19 03:56:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-19 03:56:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-19 03:56:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:56:12,053 INFO L130 BoogieDeclarations]: Found specification of procedure inbyte [2024-11-19 03:56:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure inbyte [2024-11-19 03:56:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 03:56:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 03:56:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_send [2024-11-19 03:56:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_send [2024-11-19 03:56:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-19 03:56:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-19 03:56:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-19 03:56:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-19 03:56:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2024-11-19 03:56:12,056 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2024-11-19 03:56:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-19 03:56:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-19 03:56:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-19 03:56:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-19 03:56:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-19 03:56:12,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-19 03:56:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_op [2024-11-19 03:56:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_op [2024-11-19 03:56:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-19 03:56:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-19 03:56:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:56:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:56:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:56:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:56:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:56:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:56:12,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:56:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:56:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 03:56:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 03:56:12,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:56:12,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:56:12,398 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:56:12,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:56:13,029 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:56:19,418 INFO L? ?]: Removed 777 outVars from TransFormulas that were not future-live. [2024-11-19 03:56:19,419 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:56:19,457 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:56:19,457 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 03:56:19,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:19 BoogieIcfgContainer [2024-11-19 03:56:19,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:56:19,462 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:56:19,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:56:19,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:56:19,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:56:09" (1/3) ... [2024-11-19 03:56:19,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59185c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:56:19, skipping insertion in model container [2024-11-19 03:56:19,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:56:11" (2/3) ... [2024-11-19 03:56:19,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59185c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:56:19, skipping insertion in model container [2024-11-19 03:56:19,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:56:19" (3/3) ... [2024-11-19 03:56:19,470 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2024-11-19 03:56:19,483 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:56:19,484 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:56:19,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:56:19,546 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;@6288075b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:56:19,547 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:56:19,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 924 states, 640 states have (on average 1.3703125) internal successors, (877), 655 states have internal predecessors, (877), 243 states have call successors, (243), 40 states have call predecessors, (243), 39 states have return successors, (238), 236 states have call predecessors, (238), 238 states have call successors, (238) [2024-11-19 03:56:19,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-19 03:56:19,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:19,589 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:19,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:19,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:19,594 INFO L85 PathProgramCache]: Analyzing trace with hash -29821721, now seen corresponding path program 1 times [2024-11-19 03:56:19,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:19,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717137735] [2024-11-19 03:56:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:19,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:56:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2476 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2471 trivial. 0 not checked. [2024-11-19 03:56:22,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:56:22,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717137735] [2024-11-19 03:56:22,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717137735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:56:22,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563023198] [2024-11-19 03:56:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:22,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:56:22,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:56:22,073 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 03:56:22,076 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 03:56:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:24,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 2754 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 03:56:24,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:56:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2476 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2467 trivial. 0 not checked. [2024-11-19 03:56:24,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:56:24,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563023198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:56:24,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:56:24,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 03:56:24,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495177421] [2024-11-19 03:56:24,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:56:24,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 03:56:24,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:56:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 03:56:24,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 03:56:24,793 INFO L87 Difference]: Start difference. First operand has 924 states, 640 states have (on average 1.3703125) internal successors, (877), 655 states have internal predecessors, (877), 243 states have call successors, (243), 40 states have call predecessors, (243), 39 states have return successors, (238), 236 states have call predecessors, (238), 238 states have call successors, (238) Second operand has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-19 03:56:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:56:24,888 INFO L93 Difference]: Finished difference Result 1843 states and 2791 transitions. [2024-11-19 03:56:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 03:56:24,894 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 365 [2024-11-19 03:56:24,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:56:24,915 INFO L225 Difference]: With dead ends: 1843 [2024-11-19 03:56:24,915 INFO L226 Difference]: Without dead ends: 902 [2024-11-19 03:56:24,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 03:56:24,928 INFO L432 NwaCegarLoop]: 1338 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:56:24,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:56:24,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-11-19 03:56:25,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2024-11-19 03:56:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 627 states have (on average 1.3365231259968102) internal successors, (838), 635 states have internal predecessors, (838), 236 states have call successors, (236), 39 states have call predecessors, (236), 38 states have return successors, (235), 233 states have call predecessors, (235), 235 states have call successors, (235) [2024-11-19 03:56:25,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1309 transitions. [2024-11-19 03:56:25,020 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1309 transitions. Word has length 365 [2024-11-19 03:56:25,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:56:25,021 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1309 transitions. [2024-11-19 03:56:25,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.5) internal successors, (111), 2 states have internal predecessors, (111), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-19 03:56:25,022 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1309 transitions. [2024-11-19 03:56:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-19 03:56:25,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:25,034 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:25,071 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 03:56:25,235 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,SelfDestructingSolverStorable0 [2024-11-19 03:56:25,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:25,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:25,238 INFO L85 PathProgramCache]: Analyzing trace with hash -182787798, now seen corresponding path program 1 times [2024-11-19 03:56:25,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:25,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904926172] [2024-11-19 03:56:25,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:25,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:56:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:27,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:56:27,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:56:27,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904926172] [2024-11-19 03:56:27,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904926172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:56:27,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:56:27,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:56:27,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77704050] [2024-11-19 03:56:27,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:56:27,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:56:27,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:56:27,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:56:27,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:56:27,842 INFO L87 Difference]: Start difference. First operand 902 states and 1309 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 03:56:28,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:56:28,289 INFO L93 Difference]: Finished difference Result 2691 states and 3905 transitions. [2024-11-19 03:56:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 03:56:28,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 324 [2024-11-19 03:56:28,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:56:28,303 INFO L225 Difference]: With dead ends: 2691 [2024-11-19 03:56:28,304 INFO L226 Difference]: Without dead ends: 1799 [2024-11-19 03:56:28,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 03:56:28,309 INFO L432 NwaCegarLoop]: 1681 mSDtfsCounter, 1291 mSDsluCounter, 4638 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 6319 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:56:28,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 6319 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:56:28,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2024-11-19 03:56:28,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1794. [2024-11-19 03:56:28,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1247 states have (on average 1.334402566158781) internal successors, (1664), 1263 states have internal predecessors, (1664), 469 states have call successors, (469), 78 states have call predecessors, (469), 77 states have return successors, (468), 464 states have call predecessors, (468), 468 states have call successors, (468) [2024-11-19 03:56:28,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2601 transitions. [2024-11-19 03:56:28,476 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2601 transitions. Word has length 324 [2024-11-19 03:56:28,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:56:28,477 INFO L471 AbstractCegarLoop]: Abstraction has 1794 states and 2601 transitions. [2024-11-19 03:56:28,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 03:56:28,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2601 transitions. [2024-11-19 03:56:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-19 03:56:28,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:28,491 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:28,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:56:28,491 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:28,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:28,492 INFO L85 PathProgramCache]: Analyzing trace with hash -214833637, now seen corresponding path program 1 times [2024-11-19 03:56:28,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:28,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911987553] [2024-11-19 03:56:28,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:28,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:56:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:30,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:56:30,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:56:30,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911987553] [2024-11-19 03:56:30,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911987553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:56:30,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:56:30,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:56:30,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898329413] [2024-11-19 03:56:30,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:56:30,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:56:31,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:56:31,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:56:31,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:56:31,003 INFO L87 Difference]: Start difference. First operand 1794 states and 2601 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 03:56:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:56:31,499 INFO L93 Difference]: Finished difference Result 5375 states and 7791 transitions. [2024-11-19 03:56:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 03:56:31,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 325 [2024-11-19 03:56:31,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:56:31,584 INFO L225 Difference]: With dead ends: 5375 [2024-11-19 03:56:31,584 INFO L226 Difference]: Without dead ends: 3591 [2024-11-19 03:56:31,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 03:56:31,606 INFO L432 NwaCegarLoop]: 1306 mSDtfsCounter, 1292 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:56:31,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 5195 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:56:31,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3591 states. [2024-11-19 03:56:31,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3591 to 3584. [2024-11-19 03:56:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3584 states, 2492 states have (on average 1.3326645264847512) internal successors, (3321), 2524 states have internal predecessors, (3321), 935 states have call successors, (935), 157 states have call predecessors, (935), 156 states have return successors, (934), 926 states have call predecessors, (934), 934 states have call successors, (934) [2024-11-19 03:56:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3584 states to 3584 states and 5190 transitions. [2024-11-19 03:56:31,753 INFO L78 Accepts]: Start accepts. Automaton has 3584 states and 5190 transitions. Word has length 325 [2024-11-19 03:56:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:56:31,754 INFO L471 AbstractCegarLoop]: Abstraction has 3584 states and 5190 transitions. [2024-11-19 03:56:31,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 03:56:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3584 states and 5190 transitions. [2024-11-19 03:56:31,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-19 03:56:31,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:31,768 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:31,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:56:31,769 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:31,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:31,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2052253465, now seen corresponding path program 1 times [2024-11-19 03:56:31,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:31,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946683802] [2024-11-19 03:56:31,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:31,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:56:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:56:33,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:56:33,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946683802] [2024-11-19 03:56:33,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946683802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:56:33,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:56:33,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:56:33,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551715079] [2024-11-19 03:56:33,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:56:33,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:56:33,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:56:33,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:56:33,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:56:33,946 INFO L87 Difference]: Start difference. First operand 3584 states and 5190 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 03:56:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:56:34,435 INFO L93 Difference]: Finished difference Result 10760 states and 15576 transitions. [2024-11-19 03:56:34,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 03:56:34,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 326 [2024-11-19 03:56:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:56:34,552 INFO L225 Difference]: With dead ends: 10760 [2024-11-19 03:56:34,552 INFO L226 Difference]: Without dead ends: 7186 [2024-11-19 03:56:34,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 03:56:34,570 INFO L432 NwaCegarLoop]: 1306 mSDtfsCounter, 1293 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:56:34,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 5195 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:56:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7186 states. [2024-11-19 03:56:34,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7186 to 7175. [2024-11-19 03:56:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7175 states, 4991 states have (on average 1.3309957924263676) internal successors, (6643), 5055 states have internal predecessors, (6643), 1867 states have call successors, (1867), 317 states have call predecessors, (1867), 316 states have return successors, (1866), 1850 states have call predecessors, (1866), 1866 states have call successors, (1866) [2024-11-19 03:56:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 10376 transitions. [2024-11-19 03:56:34,836 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 10376 transitions. Word has length 326 [2024-11-19 03:56:34,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:56:34,837 INFO L471 AbstractCegarLoop]: Abstraction has 7175 states and 10376 transitions. [2024-11-19 03:56:34,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 03:56:34,838 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 10376 transitions. [2024-11-19 03:56:34,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-11-19 03:56:34,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:34,855 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:34,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:56:34,855 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:34,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:34,855 INFO L85 PathProgramCache]: Analyzing trace with hash -624621826, now seen corresponding path program 1 times [2024-11-19 03:56:34,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:34,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193160337] [2024-11-19 03:56:34,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:34,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:56:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:56:37,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:56:37,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193160337] [2024-11-19 03:56:37,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193160337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:56:37,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:56:37,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:56:37,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85133943] [2024-11-19 03:56:37,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:56:37,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:56:37,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:56:37,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:56:37,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:56:37,175 INFO L87 Difference]: Start difference. First operand 7175 states and 10376 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 03:56:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:56:37,865 INFO L93 Difference]: Finished difference Result 21297 states and 30758 transitions. [2024-11-19 03:56:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 03:56:37,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 323 [2024-11-19 03:56:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:56:37,989 INFO L225 Difference]: With dead ends: 21297 [2024-11-19 03:56:37,989 INFO L226 Difference]: Without dead ends: 14132 [2024-11-19 03:56:38,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 03:56:38,067 INFO L432 NwaCegarLoop]: 1756 mSDtfsCounter, 1290 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 6542 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:56:38,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 6542 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:56:38,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14132 states. [2024-11-19 03:56:38,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14132 to 14010. [2024-11-19 03:56:38,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14010 states, 9738 states have (on average 1.3297391661532143) internal successors, (12949), 9881 states have internal predecessors, (12949), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2024-11-19 03:56:38,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14010 states to 14010 states and 20242 transitions. [2024-11-19 03:56:38,760 INFO L78 Accepts]: Start accepts. Automaton has 14010 states and 20242 transitions. Word has length 323 [2024-11-19 03:56:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:56:38,762 INFO L471 AbstractCegarLoop]: Abstraction has 14010 states and 20242 transitions. [2024-11-19 03:56:38,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-19 03:56:38,769 INFO L276 IsEmpty]: Start isEmpty. Operand 14010 states and 20242 transitions. [2024-11-19 03:56:38,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-19 03:56:38,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:38,790 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:38,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:56:38,791 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:38,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:38,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1219686869, now seen corresponding path program 1 times [2024-11-19 03:56:38,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:38,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167018535] [2024-11-19 03:56:38,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:38,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:56:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:41,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2024-11-19 03:56:41,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:56:41,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167018535] [2024-11-19 03:56:41,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167018535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:56:41,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043204495] [2024-11-19 03:56:41,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:41,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:56:41,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:56:41,291 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 03:56:41,292 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 03:56:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:43,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 2682 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 03:56:43,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:56:43,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1727 trivial. 0 not checked. [2024-11-19 03:56:43,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:56:43,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043204495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:56:43,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:56:43,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-19 03:56:43,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005712350] [2024-11-19 03:56:43,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:56:43,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:56:43,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:56:43,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:56:43,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:56:43,986 INFO L87 Difference]: Start difference. First operand 14010 states and 20242 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-19 03:56:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:56:44,334 INFO L93 Difference]: Finished difference Result 14028 states and 20274 transitions. [2024-11-19 03:56:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:56:44,335 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 335 [2024-11-19 03:56:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:56:44,413 INFO L225 Difference]: With dead ends: 14028 [2024-11-19 03:56:44,414 INFO L226 Difference]: Without dead ends: 14025 [2024-11-19 03:56:44,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:56:44,430 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 0 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2611 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 03:56:44,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2611 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:56:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14025 states. [2024-11-19 03:56:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14025 to 14025. [2024-11-19 03:56:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14025 states, 9753 states have (on average 1.3292320311698964) internal successors, (12964), 9896 states have internal predecessors, (12964), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2024-11-19 03:56:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14025 states to 14025 states and 20257 transitions. [2024-11-19 03:56:45,105 INFO L78 Accepts]: Start accepts. Automaton has 14025 states and 20257 transitions. Word has length 335 [2024-11-19 03:56:45,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:56:45,107 INFO L471 AbstractCegarLoop]: Abstraction has 14025 states and 20257 transitions. [2024-11-19 03:56:45,108 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-19 03:56:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 14025 states and 20257 transitions. [2024-11-19 03:56:45,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-19 03:56:45,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:45,132 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:45,153 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 03:56:45,332 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,SelfDestructingSolverStorable5 [2024-11-19 03:56:45,333 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:45,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1101333062, now seen corresponding path program 1 times [2024-11-19 03:56:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:45,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617033032] [2024-11-19 03:56:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:45,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:56:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:48,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2024-11-19 03:56:48,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:56:48,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617033032] [2024-11-19 03:56:48,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617033032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:56:48,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518884489] [2024-11-19 03:56:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:48,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:56:48,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:56:48,445 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 03:56:48,446 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 03:56:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:50,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 03:56:50,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:56:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2483 trivial. 0 not checked. [2024-11-19 03:56:50,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:56:50,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518884489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:56:50,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:56:50,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-19 03:56:50,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054847337] [2024-11-19 03:56:50,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:56:50,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:56:50,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:56:50,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:56:50,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:56:50,897 INFO L87 Difference]: Start difference. First operand 14025 states and 20257 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-19 03:56:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:56:51,239 INFO L93 Difference]: Finished difference Result 28055 states and 40593 transitions. [2024-11-19 03:56:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:56:51,240 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), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 376 [2024-11-19 03:56:51,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:56:51,311 INFO L225 Difference]: With dead ends: 28055 [2024-11-19 03:56:51,312 INFO L226 Difference]: Without dead ends: 14040 [2024-11-19 03:56:51,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:56:51,372 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 0 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:56:51,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2612 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:56:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14040 states. [2024-11-19 03:56:51,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14040 to 14040. [2024-11-19 03:56:51,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14040 states, 9768 states have (on average 1.3287264537264538) internal successors, (12979), 9911 states have internal predecessors, (12979), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2024-11-19 03:56:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14040 states to 14040 states and 20272 transitions. [2024-11-19 03:56:51,865 INFO L78 Accepts]: Start accepts. Automaton has 14040 states and 20272 transitions. Word has length 376 [2024-11-19 03:56:51,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:56:51,869 INFO L471 AbstractCegarLoop]: Abstraction has 14040 states and 20272 transitions. [2024-11-19 03:56:51,869 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), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-19 03:56:51,869 INFO L276 IsEmpty]: Start isEmpty. Operand 14040 states and 20272 transitions. [2024-11-19 03:56:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-19 03:56:51,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:51,903 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:51,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 03:56:52,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:56:52,107 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:52,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1476961818, now seen corresponding path program 1 times [2024-11-19 03:56:52,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:52,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279732509] [2024-11-19 03:56:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:52,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:56:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:54,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2024-11-19 03:56:54,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:56:54,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279732509] [2024-11-19 03:56:54,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279732509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:56:54,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866233330] [2024-11-19 03:56:54,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:54,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:56:54,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:56:54,779 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 03:56:54,781 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 03:56:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:56:57,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 2815 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:56:57,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:56:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1268 proven. 0 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2024-11-19 03:56:57,417 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:56:57,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866233330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:56:57,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:56:57,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-19 03:56:57,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490542498] [2024-11-19 03:56:57,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:56:57,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:56:57,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:56:57,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:56:57,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:56:57,418 INFO L87 Difference]: Start difference. First operand 14040 states and 20272 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-19 03:56:57,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:56:57,813 INFO L93 Difference]: Finished difference Result 28085 states and 40593 transitions. [2024-11-19 03:56:57,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:56:57,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 377 [2024-11-19 03:56:57,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:56:57,917 INFO L225 Difference]: With dead ends: 28085 [2024-11-19 03:56:57,917 INFO L226 Difference]: Without dead ends: 14055 [2024-11-19 03:56:57,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:56:57,977 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 0 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:56:57,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2610 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:56:57,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14055 states. [2024-11-19 03:56:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14055 to 14055. [2024-11-19 03:56:58,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14055 states, 9783 states have (on average 1.3282224266584892) internal successors, (12994), 9926 states have internal predecessors, (12994), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2024-11-19 03:56:58,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14055 states to 14055 states and 20287 transitions. [2024-11-19 03:56:58,823 INFO L78 Accepts]: Start accepts. Automaton has 14055 states and 20287 transitions. Word has length 377 [2024-11-19 03:56:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:56:58,824 INFO L471 AbstractCegarLoop]: Abstraction has 14055 states and 20287 transitions. [2024-11-19 03:56:58,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-19 03:56:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 14055 states and 20287 transitions. [2024-11-19 03:56:58,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-19 03:56:58,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:56:58,843 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:56:58,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 03:56:59,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:56:59,048 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:56:59,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:56:59,049 INFO L85 PathProgramCache]: Analyzing trace with hash -835794697, now seen corresponding path program 1 times [2024-11-19 03:56:59,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:56:59,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660653123] [2024-11-19 03:56:59,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:56:59,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:57:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:57:02,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2024-11-19 03:57:02,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:57:02,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660653123] [2024-11-19 03:57:02,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660653123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:57:02,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817949910] [2024-11-19 03:57:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:57:02,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:57:02,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:57:02,178 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 03:57:02,179 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 03:57:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:57:04,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 2816 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:57:04,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:57:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1035 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2024-11-19 03:57:04,912 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:57:04,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817949910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:57:04,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:57:04,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-19 03:57:04,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635567221] [2024-11-19 03:57:04,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:57:04,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:57:04,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:57:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:57:04,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:57:04,919 INFO L87 Difference]: Start difference. First operand 14055 states and 20287 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-19 03:57:05,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:57:05,388 INFO L93 Difference]: Finished difference Result 28115 states and 40623 transitions. [2024-11-19 03:57:05,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:57:05,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 378 [2024-11-19 03:57:05,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:57:05,479 INFO L225 Difference]: With dead ends: 28115 [2024-11-19 03:57:05,480 INFO L226 Difference]: Without dead ends: 14070 [2024-11-19 03:57:05,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:57:05,553 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 0 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:57:05,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2610 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:57:05,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14070 states. [2024-11-19 03:57:06,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14070 to 14070. [2024-11-19 03:57:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14070 states, 9798 states have (on average 1.3277199428454787) internal successors, (13009), 9941 states have internal predecessors, (13009), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2024-11-19 03:57:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14070 states to 14070 states and 20302 transitions. [2024-11-19 03:57:06,162 INFO L78 Accepts]: Start accepts. Automaton has 14070 states and 20302 transitions. Word has length 378 [2024-11-19 03:57:06,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:57:06,162 INFO L471 AbstractCegarLoop]: Abstraction has 14070 states and 20302 transitions. [2024-11-19 03:57:06,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-19 03:57:06,163 INFO L276 IsEmpty]: Start isEmpty. Operand 14070 states and 20302 transitions. [2024-11-19 03:57:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-19 03:57:06,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:57:06,185 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:57:06,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 03:57:06,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:57:06,386 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:57:06,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:57:06,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1479143235, now seen corresponding path program 1 times [2024-11-19 03:57:06,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:57:06,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149380167] [2024-11-19 03:57:06,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:57:06,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:57:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:57:08,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2024-11-19 03:57:08,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:57:08,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149380167] [2024-11-19 03:57:08,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149380167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:57:08,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061741516] [2024-11-19 03:57:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:57:08,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:57:08,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:57:08,982 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 03:57:08,983 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 03:57:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:57:11,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 2689 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 03:57:11,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:57:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:57:12,325 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:57:12,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061741516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:57:12,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:57:12,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-19 03:57:12,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455818634] [2024-11-19 03:57:12,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:57:12,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 03:57:12,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:57:12,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 03:57:12,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-19 03:57:12,334 INFO L87 Difference]: Start difference. First operand 14070 states and 20302 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-19 03:57:14,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:57:14,242 INFO L93 Difference]: Finished difference Result 35224 states and 50792 transitions. [2024-11-19 03:57:14,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 03:57:14,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 339 [2024-11-19 03:57:14,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:57:14,437 INFO L225 Difference]: With dead ends: 35224 [2024-11-19 03:57:14,437 INFO L226 Difference]: Without dead ends: 21164 [2024-11-19 03:57:14,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-19 03:57:14,505 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 1322 mSDsluCounter, 6763 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 8132 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 03:57:14,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 8132 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 03:57:14,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21164 states. [2024-11-19 03:57:15,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21164 to 21015. [2024-11-19 03:57:15,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21015 states, 14647 states have (on average 1.3283266197856216) internal successors, (19456), 14869 states have internal predecessors, (19456), 5427 states have call successors, (5427), 933 states have call predecessors, (5427), 940 states have return successors, (5446), 5350 states have call predecessors, (5446), 5426 states have call successors, (5446) [2024-11-19 03:57:15,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21015 states to 21015 states and 30329 transitions. [2024-11-19 03:57:15,562 INFO L78 Accepts]: Start accepts. Automaton has 21015 states and 30329 transitions. Word has length 339 [2024-11-19 03:57:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:57:15,563 INFO L471 AbstractCegarLoop]: Abstraction has 21015 states and 30329 transitions. [2024-11-19 03:57:15,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-19 03:57:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 21015 states and 30329 transitions. [2024-11-19 03:57:15,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-11-19 03:57:15,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:57:15,598 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:57:15,618 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 03:57:15,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:57:15,799 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:57:15,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:57:15,800 INFO L85 PathProgramCache]: Analyzing trace with hash -345300498, now seen corresponding path program 1 times [2024-11-19 03:57:15,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:57:15,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976456494] [2024-11-19 03:57:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:57:15,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:57:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:57:18,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:57:18,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:57:18,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976456494] [2024-11-19 03:57:18,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976456494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:57:18,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081440927] [2024-11-19 03:57:18,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:57:18,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:57:18,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:57:18,338 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 03:57:18,353 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 03:57:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:57:20,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 03:57:20,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:57:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:57:21,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:57:21,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081440927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:57:21,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:57:21,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-19 03:57:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687078209] [2024-11-19 03:57:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:57:21,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 03:57:21,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:57:21,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 03:57:21,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 03:57:21,618 INFO L87 Difference]: Start difference. First operand 21015 states and 30329 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-19 03:57:23,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:57:23,416 INFO L93 Difference]: Finished difference Result 49167 states and 70892 transitions. [2024-11-19 03:57:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 03:57:23,417 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 340 [2024-11-19 03:57:23,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:57:23,604 INFO L225 Difference]: With dead ends: 49167 [2024-11-19 03:57:23,604 INFO L226 Difference]: Without dead ends: 28162 [2024-11-19 03:57:23,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-19 03:57:23,694 INFO L432 NwaCegarLoop]: 1715 mSDtfsCounter, 1322 mSDsluCounter, 8133 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 9848 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 03:57:23,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 9848 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 03:57:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28162 states. [2024-11-19 03:57:24,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28162 to 27992. [2024-11-19 03:57:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27992 states, 19516 states have (on average 1.3282947325271572) internal successors, (25923), 19833 states have internal predecessors, (25923), 7207 states have call successors, (7207), 1241 states have call predecessors, (7207), 1268 states have return successors, (7258), 7100 states have call predecessors, (7258), 7206 states have call successors, (7258) [2024-11-19 03:57:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27992 states to 27992 states and 40388 transitions. [2024-11-19 03:57:24,789 INFO L78 Accepts]: Start accepts. Automaton has 27992 states and 40388 transitions. Word has length 340 [2024-11-19 03:57:24,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:57:24,790 INFO L471 AbstractCegarLoop]: Abstraction has 27992 states and 40388 transitions. [2024-11-19 03:57:24,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-19 03:57:24,790 INFO L276 IsEmpty]: Start isEmpty. Operand 27992 states and 40388 transitions. [2024-11-19 03:57:24,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-19 03:57:24,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:57:24,845 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 03:57:24,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 03:57:25,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:57:25,046 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:57:25,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:57:25,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1642410980, now seen corresponding path program 1 times [2024-11-19 03:57:25,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:57:25,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999278533] [2024-11-19 03:57:25,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:57:25,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:57:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:57:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:57:27,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:57:27,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999278533] [2024-11-19 03:57:27,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999278533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:57:27,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965548602] [2024-11-19 03:57:27,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:57:27,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:57:27,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:57:27,505 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 03:57:27,506 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 03:57:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:57:30,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 2693 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 03:57:30,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:57:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2024-11-19 03:57:30,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:57:30,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965548602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:57:30,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:57:30,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-19 03:57:30,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737763162] [2024-11-19 03:57:30,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:57:30,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 03:57:30,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:57:30,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 03:57:30,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 03:57:30,847 INFO L87 Difference]: Start difference. First operand 27992 states and 40388 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35)