./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.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 83293f5c81ac30df7449dd9c03263a4edbba62be916a9a4fda92d2518792b8d4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 15:17:22,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 15:17:22,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 15:17:22,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 15:17:22,198 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 15:17:22,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 15:17:22,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 15:17:22,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 15:17:22,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 15:17:22,214 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 15:17:22,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 15:17:22,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 15:17:22,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 15:17:22,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 15:17:22,216 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 15:17:22,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 15:17:22,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 15:17:22,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 15:17:22,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 15:17:22,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 15:17:22,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 15:17:22,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 15:17:22,227 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 15:17:22,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 15:17:22,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 15:17:22,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 15:17:22,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 15:17:22,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 15:17:22,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 15:17:22,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:17:22,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 15:17:22,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 15:17:22,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 15:17:22,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 15:17:22,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 15:17:22,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 15:17:22,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 15:17:22,233 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 15:17:22,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 15:17:22,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83293f5c81ac30df7449dd9c03263a4edbba62be916a9a4fda92d2518792b8d4 [2024-11-22 15:17:22,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 15:17:22,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 15:17:22,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 15:17:22,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 15:17:22,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 15:17:22,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2024-11-22 15:17:23,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 15:17:24,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 15:17:24,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2024-11-22 15:17:24,431 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59bf3f57e/18e8810b2bd84350a58b57dfab9b0178/FLAG05fddd35b [2024-11-22 15:17:24,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59bf3f57e/18e8810b2bd84350a58b57dfab9b0178 [2024-11-22 15:17:24,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 15:17:24,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 15:17:24,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 15:17:24,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 15:17:24,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 15:17:24,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:17:24" (1/1) ... [2024-11-22 15:17:24,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd53d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:24, skipping insertion in model container [2024-11-22 15:17:24,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:17:24" (1/1) ... [2024-11-22 15:17:24,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 15:17:25,333 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i[163669,163682] [2024-11-22 15:17:25,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:17:25,710 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 15:17:25,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5402] [2024-11-22 15:17:25,851 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"); [5440] [2024-11-22 15:17:25,851 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)); [5447] [2024-11-22 15:17:25,852 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5455-5456] [2024-11-22 15:17:25,853 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; incl %0": "+m" (v->counter)); [5484] [2024-11-22 15:17:25,858 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; decl %0": "+m" (v->counter)); [5491] [2024-11-22 15:17:25,870 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i[163669,163682] [2024-11-22 15:17:25,919 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6228/dscv_tempdir/dscv/ri/144_2a/drivers/net/can/usb/usb_8dev.o.c.prepared"), "i" (621), "i" (12UL)); [6324-6325] [2024-11-22 15:17:25,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:17:26,058 INFO L204 MainTranslator]: Completed translation [2024-11-22 15:17:26,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26 WrapperNode [2024-11-22 15:17:26,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 15:17:26,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 15:17:26,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 15:17:26,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 15:17:26,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,194 INFO L138 Inliner]: procedures = 174, calls = 830, calls flagged for inlining = 87, calls inlined = 87, statements flattened = 2654 [2024-11-22 15:17:26,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 15:17:26,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 15:17:26,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 15:17:26,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 15:17:26,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,227 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,458 INFO L175 MemorySlicer]: Split 464 memory accesses to 8 slices as follows [31, 2, 5, 1, 44, 341, 31, 9]. 73 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [0, 2, 0, 0, 0, 26, 0, 0]. The 249 writes are split as follows [18, 0, 1, 0, 44, 186, 0, 0]. [2024-11-22 15:17:26,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,595 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 15:17:26,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 15:17:26,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 15:17:26,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 15:17:26,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (1/1) ... [2024-11-22 15:17:26,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:17:26,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:17:26,725 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) [2024-11-22 15:17:26,730 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 [2024-11-22 15:17:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-22 15:17:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-22 15:17:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-22 15:17:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-22 15:17:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-11-22 15:17:26,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_15 [2024-11-22 15:17:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_15 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 15:17:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-22 15:17:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-11-22 15:17:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-11-22 15:17:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-22 15:17:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-22 15:17:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-22 15:17:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-22 15:17:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-22 15:17:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-22 15:17:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-22 15:17:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-22 15:17:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-22 15:17:26,773 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-22 15:17:26,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-22 15:17:26,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 15:17:26,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 15:17:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 15:17:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 15:17:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 15:17:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 15:17:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 15:17:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 15:17:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-22 15:17:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-22 15:17:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-22 15:17:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-22 15:17:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-22 15:17:26,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-22 15:17:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-22 15:17:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-22 15:17:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-22 15:17:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-22 15:17:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-22 15:17:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-22 15:17:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-22 15:17:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-22 15:17:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-22 15:17:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-22 15:17:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-22 15:17:26,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-22 15:17:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_read_bulk_callback [2024-11-22 15:17:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_read_bulk_callback [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-22 15:17:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-22 15:17:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-22 15:17:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-22 15:17:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-22 15:17:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-22 15:17:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-22 15:17:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-22 15:17:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-22 15:17:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-22 15:17:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-22 15:17:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-22 15:17:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 15:17:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-22 15:17:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-22 15:17:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 15:17:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-22 15:17:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-22 15:17:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-22 15:17:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-22 15:17:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2024-11-22 15:17:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2024-11-22 15:17:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 15:17:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-22 15:17:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-22 15:17:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 15:17:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 15:17:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 15:17:26,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 15:17:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 15:17:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 15:17:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 15:17:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 15:17:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-22 15:17:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-22 15:17:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-22 15:17:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-22 15:17:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-22 15:17:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-22 15:17:26,787 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-22 15:17:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 15:17:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 15:17:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 15:17:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 15:17:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 15:17:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 15:17:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 15:17:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-22 15:17:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-22 15:17:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-22 15:17:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-22 15:17:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-22 15:17:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-22 15:17:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-22 15:17:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2024-11-22 15:17:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2024-11-22 15:17:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 15:17:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_disconnect [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_disconnect [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-22 15:17:26,791 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 15:17:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-22 15:17:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-22 15:17:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_send_cmd [2024-11-22 15:17:26,792 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_send_cmd [2024-11-22 15:17:26,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-22 15:17:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-22 15:17:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 15:17:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 15:17:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_8dev_cmd_open [2024-11-22 15:17:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_8dev_cmd_open [2024-11-22 15:17:27,190 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 15:17:27,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 15:17:27,279 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-22 15:17:28,197 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-22 15:17:36,365 INFO L? ?]: Removed 1214 outVars from TransFormulas that were not future-live. [2024-11-22 15:17:36,365 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 15:17:36,399 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 15:17:36,402 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 15:17:36,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:17:36 BoogieIcfgContainer [2024-11-22 15:17:36,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 15:17:36,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 15:17:36,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 15:17:36,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 15:17:36,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:17:24" (1/3) ... [2024-11-22 15:17:36,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511c8ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:17:36, skipping insertion in model container [2024-11-22 15:17:36,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:17:26" (2/3) ... [2024-11-22 15:17:36,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511c8ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:17:36, skipping insertion in model container [2024-11-22 15:17:36,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:17:36" (3/3) ... [2024-11-22 15:17:36,413 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--usb_8dev.ko-entry_point.cil.out.i [2024-11-22 15:17:36,426 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 15:17:36,426 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 15:17:36,500 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 15:17:36,506 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;@511e661, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 15:17:36,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 15:17:36,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 813 states, 611 states have (on average 1.3453355155482816) internal successors, (822), 631 states have internal predecessors, (822), 155 states have call successors, (155), 47 states have call predecessors, (155), 45 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-22 15:17:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-22 15:17:36,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:36,522 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 15:17:36,522 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:36,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:36,527 INFO L85 PathProgramCache]: Analyzing trace with hash -864942331, now seen corresponding path program 1 times [2024-11-22 15:17:36,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:36,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364912674] [2024-11-22 15:17:36,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:36,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:17:38,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:38,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364912674] [2024-11-22 15:17:38,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364912674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:38,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:38,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:38,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446279106] [2024-11-22 15:17:38,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:38,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:38,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:38,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:38,608 INFO L87 Difference]: Start difference. First operand has 813 states, 611 states have (on average 1.3453355155482816) internal successors, (822), 631 states have internal predecessors, (822), 155 states have call successors, (155), 47 states have call predecessors, (155), 45 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 15:17:42,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:17:42,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:42,907 INFO L93 Difference]: Finished difference Result 2395 states and 3373 transitions. [2024-11-22 15:17:42,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:42,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-22 15:17:42,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:42,941 INFO L225 Difference]: With dead ends: 2395 [2024-11-22 15:17:42,942 INFO L226 Difference]: Without dead ends: 1563 [2024-11-22 15:17:42,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:42,961 INFO L432 NwaCegarLoop]: 1104 mSDtfsCounter, 1050 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:42,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 2181 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-22 15:17:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-22 15:17:43,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1563. [2024-11-22 15:17:43,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1185 states have (on average 1.2953586497890295) internal successors, (1535), 1205 states have internal predecessors, (1535), 289 states have call successors, (289), 89 states have call predecessors, (289), 88 states have return successors, (284), 282 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-22 15:17:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2108 transitions. [2024-11-22 15:17:43,123 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2108 transitions. Word has length 28 [2024-11-22 15:17:43,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:43,124 INFO L471 AbstractCegarLoop]: Abstraction has 1563 states and 2108 transitions. [2024-11-22 15:17:43,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 15:17:43,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2108 transitions. [2024-11-22 15:17:43,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 15:17:43,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:43,128 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:43,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 15:17:43,131 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:43,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:43,131 INFO L85 PathProgramCache]: Analyzing trace with hash -839642905, now seen corresponding path program 1 times [2024-11-22 15:17:43,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:43,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306590302] [2024-11-22 15:17:43,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:43,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:44,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:44,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306590302] [2024-11-22 15:17:44,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306590302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:44,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:44,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:44,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82653688] [2024-11-22 15:17:44,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:44,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:44,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:44,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:44,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:44,794 INFO L87 Difference]: Start difference. First operand 1563 states and 2108 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:45,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:45,041 INFO L93 Difference]: Finished difference Result 4674 states and 6329 transitions. [2024-11-22 15:17:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:45,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-22 15:17:45,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:45,062 INFO L225 Difference]: With dead ends: 4674 [2024-11-22 15:17:45,062 INFO L226 Difference]: Without dead ends: 3118 [2024-11-22 15:17:45,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:45,069 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1049 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:45,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 2659 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:45,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2024-11-22 15:17:45,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 3108. [2024-11-22 15:17:45,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 2360 states have (on average 1.2940677966101695) internal successors, (3054), 2396 states have internal predecessors, (3054), 571 states have call successors, (571), 177 states have call predecessors, (571), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-22 15:17:45,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 4205 transitions. [2024-11-22 15:17:45,183 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 4205 transitions. Word has length 38 [2024-11-22 15:17:45,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:45,184 INFO L471 AbstractCegarLoop]: Abstraction has 3108 states and 4205 transitions. [2024-11-22 15:17:45,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:45,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 4205 transitions. [2024-11-22 15:17:45,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-22 15:17:45,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:45,188 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:45,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 15:17:45,188 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:45,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:45,188 INFO L85 PathProgramCache]: Analyzing trace with hash -259542901, now seen corresponding path program 1 times [2024-11-22 15:17:45,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:45,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585321516] [2024-11-22 15:17:45,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:45,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:46,791 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:46,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:46,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585321516] [2024-11-22 15:17:46,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585321516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:46,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:46,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:46,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474902931] [2024-11-22 15:17:46,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:46,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:46,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:46,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:46,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:46,793 INFO L87 Difference]: Start difference. First operand 3108 states and 4205 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:46,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:46,864 INFO L93 Difference]: Finished difference Result 3110 states and 4206 transitions. [2024-11-22 15:17:46,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:46,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-11-22 15:17:46,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:46,881 INFO L225 Difference]: With dead ends: 3110 [2024-11-22 15:17:46,881 INFO L226 Difference]: Without dead ends: 3107 [2024-11-22 15:17:46,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:46,887 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 1050 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:46,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 1073 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:46,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-22 15:17:47,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3107. [2024-11-22 15:17:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3107 states, 2360 states have (on average 1.2936440677966101) internal successors, (3053), 2395 states have internal predecessors, (3053), 570 states have call successors, (570), 177 states have call predecessors, (570), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-22 15:17:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3107 states to 3107 states and 4203 transitions. [2024-11-22 15:17:47,038 INFO L78 Accepts]: Start accepts. Automaton has 3107 states and 4203 transitions. Word has length 39 [2024-11-22 15:17:47,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:47,038 INFO L471 AbstractCegarLoop]: Abstraction has 3107 states and 4203 transitions. [2024-11-22 15:17:47,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:47,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3107 states and 4203 transitions. [2024-11-22 15:17:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-22 15:17:47,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:47,043 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:47,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 15:17:47,043 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:47,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:47,044 INFO L85 PathProgramCache]: Analyzing trace with hash 543692906, now seen corresponding path program 1 times [2024-11-22 15:17:47,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:47,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811914093] [2024-11-22 15:17:47,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:47,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:48,400 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:48,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:48,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811914093] [2024-11-22 15:17:48,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811914093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:48,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:48,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802299835] [2024-11-22 15:17:48,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:48,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:48,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:48,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:48,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:48,403 INFO L87 Difference]: Start difference. First operand 3107 states and 4203 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:48,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:48,516 INFO L93 Difference]: Finished difference Result 3109 states and 4204 transitions. [2024-11-22 15:17:48,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:48,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-22 15:17:48,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:48,529 INFO L225 Difference]: With dead ends: 3109 [2024-11-22 15:17:48,529 INFO L226 Difference]: Without dead ends: 3106 [2024-11-22 15:17:48,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:48,531 INFO L432 NwaCegarLoop]: 1071 mSDtfsCounter, 1047 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:48,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 1071 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:48,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2024-11-22 15:17:48,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 3106. [2024-11-22 15:17:48,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 2360 states have (on average 1.2932203389830508) internal successors, (3052), 2394 states have internal predecessors, (3052), 569 states have call successors, (569), 177 states have call predecessors, (569), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-22 15:17:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 4201 transitions. [2024-11-22 15:17:48,642 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 4201 transitions. Word has length 40 [2024-11-22 15:17:48,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:48,644 INFO L471 AbstractCegarLoop]: Abstraction has 3106 states and 4201 transitions. [2024-11-22 15:17:48,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:48,644 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 4201 transitions. [2024-11-22 15:17:48,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 15:17:48,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:48,647 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:48,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 15:17:48,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:48,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:48,648 INFO L85 PathProgramCache]: Analyzing trace with hash -325795986, now seen corresponding path program 1 times [2024-11-22 15:17:48,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:48,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140152796] [2024-11-22 15:17:48,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:48,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:49,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:49,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140152796] [2024-11-22 15:17:49,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140152796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:49,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:49,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:49,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219063249] [2024-11-22 15:17:49,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:49,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:49,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:49,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:49,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:49,827 INFO L87 Difference]: Start difference. First operand 3106 states and 4201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:49,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:49,910 INFO L93 Difference]: Finished difference Result 3108 states and 4202 transitions. [2024-11-22 15:17:49,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:49,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-11-22 15:17:49,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:49,927 INFO L225 Difference]: With dead ends: 3108 [2024-11-22 15:17:49,927 INFO L226 Difference]: Without dead ends: 3105 [2024-11-22 15:17:49,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:49,930 INFO L432 NwaCegarLoop]: 1069 mSDtfsCounter, 1044 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:49,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1069 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:49,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2024-11-22 15:17:50,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 3105. [2024-11-22 15:17:50,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2360 states have (on average 1.2927966101694914) internal successors, (3051), 2393 states have internal predecessors, (3051), 568 states have call successors, (568), 177 states have call predecessors, (568), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-22 15:17:50,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 4199 transitions. [2024-11-22 15:17:50,111 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 4199 transitions. Word has length 41 [2024-11-22 15:17:50,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:50,112 INFO L471 AbstractCegarLoop]: Abstraction has 3105 states and 4199 transitions. [2024-11-22 15:17:50,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:50,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 4199 transitions. [2024-11-22 15:17:50,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-22 15:17:50,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:50,113 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:50,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 15:17:50,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:50,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:50,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1510142995, now seen corresponding path program 1 times [2024-11-22 15:17:50,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:50,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140009063] [2024-11-22 15:17:50,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:50,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:51,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:51,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140009063] [2024-11-22 15:17:51,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140009063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:51,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:51,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:51,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881157956] [2024-11-22 15:17:51,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:51,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:51,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:51,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:51,677 INFO L87 Difference]: Start difference. First operand 3105 states and 4199 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:51,757 INFO L93 Difference]: Finished difference Result 3107 states and 4200 transitions. [2024-11-22 15:17:51,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:51,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-22 15:17:51,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:51,772 INFO L225 Difference]: With dead ends: 3107 [2024-11-22 15:17:51,772 INFO L226 Difference]: Without dead ends: 3095 [2024-11-22 15:17:51,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:51,776 INFO L432 NwaCegarLoop]: 1068 mSDtfsCounter, 1041 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1068 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 [2024-11-22 15:17:51,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1068 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:51,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2024-11-22 15:17:51,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 3095. [2024-11-22 15:17:51,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2351 states have (on average 1.2922160782645682) internal successors, (3038), 2383 states have internal predecessors, (3038), 567 states have call successors, (567), 177 states have call predecessors, (567), 176 states have return successors, (580), 562 states have call predecessors, (580), 566 states have call successors, (580) [2024-11-22 15:17:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 4185 transitions. [2024-11-22 15:17:51,930 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 4185 transitions. Word has length 42 [2024-11-22 15:17:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:51,931 INFO L471 AbstractCegarLoop]: Abstraction has 3095 states and 4185 transitions. [2024-11-22 15:17:51,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:17:51,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 4185 transitions. [2024-11-22 15:17:51,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-22 15:17:51,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:51,937 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:51,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 15:17:51,937 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:51,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:51,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1353177793, now seen corresponding path program 1 times [2024-11-22 15:17:51,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:51,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907639926] [2024-11-22 15:17:51,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:51,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:53,105 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:17:53,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:53,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907639926] [2024-11-22 15:17:53,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907639926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:53,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:53,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834164724] [2024-11-22 15:17:53,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:53,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:53,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:53,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:53,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:53,107 INFO L87 Difference]: Start difference. First operand 3095 states and 4185 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 15:17:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:53,356 INFO L93 Difference]: Finished difference Result 7096 states and 9506 transitions. [2024-11-22 15:17:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:53,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2024-11-22 15:17:53,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:53,375 INFO L225 Difference]: With dead ends: 7096 [2024-11-22 15:17:53,375 INFO L226 Difference]: Without dead ends: 4008 [2024-11-22 15:17:53,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:53,387 INFO L432 NwaCegarLoop]: 1158 mSDtfsCounter, 302 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:53,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 2195 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:53,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2024-11-22 15:17:53,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 4000. [2024-11-22 15:17:53,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4000 states, 3036 states have (on average 1.2786561264822134) internal successors, (3882), 3076 states have internal predecessors, (3882), 712 states have call successors, (712), 252 states have call predecessors, (712), 251 states have return successors, (725), 707 states have call predecessors, (725), 711 states have call successors, (725) [2024-11-22 15:17:53,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4000 states to 4000 states and 5319 transitions. [2024-11-22 15:17:53,565 INFO L78 Accepts]: Start accepts. Automaton has 4000 states and 5319 transitions. Word has length 87 [2024-11-22 15:17:53,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:53,566 INFO L471 AbstractCegarLoop]: Abstraction has 4000 states and 5319 transitions. [2024-11-22 15:17:53,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 15:17:53,566 INFO L276 IsEmpty]: Start isEmpty. Operand 4000 states and 5319 transitions. [2024-11-22 15:17:53,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 15:17:53,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:53,570 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:53,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 15:17:53,571 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:53,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:53,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1568239270, now seen corresponding path program 1 times [2024-11-22 15:17:53,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:53,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860911464] [2024-11-22 15:17:53,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:53,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 15:17:54,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:54,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860911464] [2024-11-22 15:17:54,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860911464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:54,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:54,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:54,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76602933] [2024-11-22 15:17:54,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:54,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:54,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:54,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:54,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:54,809 INFO L87 Difference]: Start difference. First operand 4000 states and 5319 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 15:17:58,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:17:59,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:59,180 INFO L93 Difference]: Finished difference Result 8940 states and 11846 transitions. [2024-11-22 15:17:59,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:59,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2024-11-22 15:17:59,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:59,209 INFO L225 Difference]: With dead ends: 8940 [2024-11-22 15:17:59,209 INFO L226 Difference]: Without dead ends: 4954 [2024-11-22 15:17:59,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:59,238 INFO L432 NwaCegarLoop]: 1355 mSDtfsCounter, 310 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:59,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 2393 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-22 15:17:59,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4954 states. [2024-11-22 15:17:59,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4954 to 4946. [2024-11-22 15:17:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4946 states, 3764 states have (on average 1.2720510095642934) internal successors, (4788), 3812 states have internal predecessors, (4788), 856 states have call successors, (856), 326 states have call predecessors, (856), 325 states have return successors, (869), 851 states have call predecessors, (869), 855 states have call successors, (869) [2024-11-22 15:17:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4946 states to 4946 states and 6513 transitions. [2024-11-22 15:17:59,669 INFO L78 Accepts]: Start accepts. Automaton has 4946 states and 6513 transitions. Word has length 103 [2024-11-22 15:17:59,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:59,669 INFO L471 AbstractCegarLoop]: Abstraction has 4946 states and 6513 transitions. [2024-11-22 15:17:59,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-22 15:17:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4946 states and 6513 transitions. [2024-11-22 15:17:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 15:17:59,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:59,675 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:59,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 15:17:59,675 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:59,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:59,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1357082055, now seen corresponding path program 1 times [2024-11-22 15:17:59,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:59,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896502802] [2024-11-22 15:17:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:59,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 15:18:01,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:01,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896502802] [2024-11-22 15:18:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896502802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:18:01,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:18:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:18:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821698623] [2024-11-22 15:18:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:18:01,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:18:01,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:18:01,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:18:01,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:18:01,155 INFO L87 Difference]: Start difference. First operand 4946 states and 6513 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 15:18:05,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:18:05,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:18:05,552 INFO L93 Difference]: Finished difference Result 11940 states and 15660 transitions. [2024-11-22 15:18:05,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:18:05,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2024-11-22 15:18:05,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:18:05,593 INFO L225 Difference]: With dead ends: 11940 [2024-11-22 15:18:05,593 INFO L226 Difference]: Without dead ends: 7008 [2024-11-22 15:18:05,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:18:05,609 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 840 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-22 15:18:05,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 2238 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-22 15:18:05,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2024-11-22 15:18:05,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 7000. [2024-11-22 15:18:05,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7000 states, 5372 states have (on average 1.27475800446761) internal successors, (6848), 5444 states have internal predecessors, (6848), 1136 states have call successors, (1136), 492 states have call predecessors, (1136), 491 states have return successors, (1149), 1127 states have call predecessors, (1149), 1135 states have call successors, (1149) [2024-11-22 15:18:05,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7000 states to 7000 states and 9133 transitions. [2024-11-22 15:18:05,904 INFO L78 Accepts]: Start accepts. Automaton has 7000 states and 9133 transitions. Word has length 115 [2024-11-22 15:18:05,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:18:05,905 INFO L471 AbstractCegarLoop]: Abstraction has 7000 states and 9133 transitions. [2024-11-22 15:18:05,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-22 15:18:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 7000 states and 9133 transitions. [2024-11-22 15:18:05,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 15:18:05,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:18:05,912 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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] [2024-11-22 15:18:05,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 15:18:05,912 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:18:05,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:18:05,913 INFO L85 PathProgramCache]: Analyzing trace with hash 143181183, now seen corresponding path program 1 times [2024-11-22 15:18:05,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:18:05,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553827320] [2024-11-22 15:18:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:05,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 15:18:07,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:07,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553827320] [2024-11-22 15:18:07,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553827320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:18:07,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478202930] [2024-11-22 15:18:07,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:07,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:18:07,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:18:07,304 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) [2024-11-22 15:18:07,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 15:18:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:09,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 15:18:09,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:18:10,273 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 15:18:10,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:18:10,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478202930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:18:10,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:18:10,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-22 15:18:10,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766589382] [2024-11-22 15:18:10,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:18:10,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:18:10,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:18:10,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:18:10,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:18:10,276 INFO L87 Difference]: Start difference. First operand 7000 states and 9133 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 15:18:14,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:18:17,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:18:17,529 INFO L93 Difference]: Finished difference Result 20974 states and 27366 transitions. [2024-11-22 15:18:17,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:18:17,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 135 [2024-11-22 15:18:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:18:17,605 INFO L225 Difference]: With dead ends: 20974 [2024-11-22 15:18:17,606 INFO L226 Difference]: Without dead ends: 20966 [2024-11-22 15:18:17,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:18:17,621 INFO L432 NwaCegarLoop]: 1286 mSDtfsCounter, 2549 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 217 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2549 SdHoareTripleChecker+Valid, 3099 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-22 15:18:17,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2549 Valid, 3099 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 310 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2024-11-22 15:18:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20966 states. [2024-11-22 15:18:18,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20966 to 20932. [2024-11-22 15:18:18,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20932 states, 16060 states have (on average 1.2753424657534247) internal successors, (20482), 16292 states have internal predecessors, (20482), 3400 states have call successors, (3400), 1472 states have call predecessors, (3400), 1471 states have return successors, (3441), 3359 states have call predecessors, (3441), 3399 states have call successors, (3441) [2024-11-22 15:18:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20932 states to 20932 states and 27323 transitions. [2024-11-22 15:18:18,790 INFO L78 Accepts]: Start accepts. Automaton has 20932 states and 27323 transitions. Word has length 135 [2024-11-22 15:18:18,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:18:18,791 INFO L471 AbstractCegarLoop]: Abstraction has 20932 states and 27323 transitions. [2024-11-22 15:18:18,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 15:18:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 20932 states and 27323 transitions. [2024-11-22 15:18:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 15:18:18,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:18:18,814 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:18:18,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 15:18:19,018 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,SelfDestructingSolverStorable9 [2024-11-22 15:18:19,019 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:18:19,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:18:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash 405962465, now seen corresponding path program 1 times [2024-11-22 15:18:19,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:18:19,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308115083] [2024-11-22 15:18:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:19,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:20,509 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 15:18:20,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:20,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308115083] [2024-11-22 15:18:20,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308115083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:18:20,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:18:20,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:18:20,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493102461] [2024-11-22 15:18:20,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:18:20,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:18:20,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:18:20,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:18:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:18:20,511 INFO L87 Difference]: Start difference. First operand 20932 states and 27323 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 15:18:24,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:18:24,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:18:24,973 INFO L93 Difference]: Finished difference Result 31914 states and 41653 transitions. [2024-11-22 15:18:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:18:24,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2024-11-22 15:18:24,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:18:25,021 INFO L225 Difference]: With dead ends: 31914 [2024-11-22 15:18:25,021 INFO L226 Difference]: Without dead ends: 10346 [2024-11-22 15:18:25,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:18:25,076 INFO L432 NwaCegarLoop]: 1253 mSDtfsCounter, 991 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:18:25,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1549 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-22 15:18:25,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10346 states. [2024-11-22 15:18:25,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10346 to 10346. [2024-11-22 15:18:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10346 states, 7933 states have (on average 1.2726585150636582) internal successors, (10096), 8049 states have internal predecessors, (10096), 1684 states have call successors, (1684), 729 states have call predecessors, (1684), 728 states have return successors, (1704), 1663 states have call predecessors, (1704), 1683 states have call successors, (1704) [2024-11-22 15:18:25,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10346 states to 10346 states and 13484 transitions. [2024-11-22 15:18:25,461 INFO L78 Accepts]: Start accepts. Automaton has 10346 states and 13484 transitions. Word has length 145 [2024-11-22 15:18:25,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:18:25,462 INFO L471 AbstractCegarLoop]: Abstraction has 10346 states and 13484 transitions. [2024-11-22 15:18:25,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 15:18:25,462 INFO L276 IsEmpty]: Start isEmpty. Operand 10346 states and 13484 transitions. [2024-11-22 15:18:25,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 15:18:25,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:18:25,475 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-22 15:18:25,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 15:18:25,476 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:18:25,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:18:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash 883101261, now seen corresponding path program 1 times [2024-11-22 15:18:25,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:18:25,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077212607] [2024-11-22 15:18:25,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:25,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 15:18:26,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:26,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077212607] [2024-11-22 15:18:26,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077212607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:18:26,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:18:26,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:18:26,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406503355] [2024-11-22 15:18:26,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:18:26,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:18:26,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:18:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:18:26,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:18:26,801 INFO L87 Difference]: Start difference. First operand 10346 states and 13484 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 15:18:30,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:18:31,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:18:31,369 INFO L93 Difference]: Finished difference Result 19304 states and 25236 transitions. [2024-11-22 15:18:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:18:31,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 147 [2024-11-22 15:18:31,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:18:31,412 INFO L225 Difference]: With dead ends: 19304 [2024-11-22 15:18:31,413 INFO L226 Difference]: Without dead ends: 9704 [2024-11-22 15:18:31,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:18:31,439 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 832 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-22 15:18:31,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 2479 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-22 15:18:31,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9704 states. [2024-11-22 15:18:31,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9704 to 9696. [2024-11-22 15:18:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9696 states, 7442 states have (on average 1.2710292932007525) internal successors, (9459), 7551 states have internal predecessors, (9459), 1579 states have call successors, (1579), 675 states have call predecessors, (1579), 674 states have return successors, (1599), 1559 states have call predecessors, (1599), 1578 states have call successors, (1599) [2024-11-22 15:18:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9696 states to 9696 states and 12637 transitions. [2024-11-22 15:18:31,786 INFO L78 Accepts]: Start accepts. Automaton has 9696 states and 12637 transitions. Word has length 147 [2024-11-22 15:18:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:18:31,787 INFO L471 AbstractCegarLoop]: Abstraction has 9696 states and 12637 transitions. [2024-11-22 15:18:31,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 15:18:31,787 INFO L276 IsEmpty]: Start isEmpty. Operand 9696 states and 12637 transitions. [2024-11-22 15:18:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 15:18:31,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:18:31,798 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-22 15:18:31,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 15:18:31,798 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:18:31,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:18:31,798 INFO L85 PathProgramCache]: Analyzing trace with hash 945140875, now seen corresponding path program 1 times [2024-11-22 15:18:31,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:18:31,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203825799] [2024-11-22 15:18:31,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:31,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 15:18:33,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:33,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203825799] [2024-11-22 15:18:33,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203825799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:18:33,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:18:33,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 15:18:33,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572983145] [2024-11-22 15:18:33,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:18:33,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:18:33,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:18:33,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:18:33,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 15:18:33,192 INFO L87 Difference]: Start difference. First operand 9696 states and 12637 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 15:18:33,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:18:33,703 INFO L93 Difference]: Finished difference Result 23794 states and 31051 transitions. [2024-11-22 15:18:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 15:18:33,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 147 [2024-11-22 15:18:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:18:33,772 INFO L225 Difference]: With dead ends: 23794 [2024-11-22 15:18:33,772 INFO L226 Difference]: Without dead ends: 14844 [2024-11-22 15:18:33,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:18:33,802 INFO L432 NwaCegarLoop]: 1062 mSDtfsCounter, 1058 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:18:33,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 2952 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:18:33,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14844 states. [2024-11-22 15:18:34,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14844 to 14782. [2024-11-22 15:18:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14782 states, 11364 states have (on average 1.272615276311158) internal successors, (14462), 11537 states have internal predecessors, (14462), 2389 states have call successors, (2389), 1029 states have call predecessors, (2389), 1028 states have return successors, (2421), 2347 states have call predecessors, (2421), 2388 states have call successors, (2421) [2024-11-22 15:18:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14782 states to 14782 states and 19272 transitions. [2024-11-22 15:18:34,509 INFO L78 Accepts]: Start accepts. Automaton has 14782 states and 19272 transitions. Word has length 147 [2024-11-22 15:18:34,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:18:34,510 INFO L471 AbstractCegarLoop]: Abstraction has 14782 states and 19272 transitions. [2024-11-22 15:18:34,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 15:18:34,510 INFO L276 IsEmpty]: Start isEmpty. Operand 14782 states and 19272 transitions. [2024-11-22 15:18:34,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 15:18:34,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:18:34,526 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-22 15:18:34,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 15:18:34,526 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:18:34,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:18:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash 679339096, now seen corresponding path program 1 times [2024-11-22 15:18:34,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:18:34,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392206913] [2024-11-22 15:18:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:34,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 15:18:36,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:36,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392206913] [2024-11-22 15:18:36,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392206913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:18:36,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:18:36,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 15:18:36,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968945825] [2024-11-22 15:18:36,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:18:36,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 15:18:36,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:18:36,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 15:18:36,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:18:36,362 INFO L87 Difference]: Start difference. First operand 14782 states and 19272 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 15:18:36,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:18:36,968 INFO L93 Difference]: Finished difference Result 29028 states and 38039 transitions. [2024-11-22 15:18:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 15:18:36,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 148 [2024-11-22 15:18:36,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:18:37,054 INFO L225 Difference]: With dead ends: 29028 [2024-11-22 15:18:37,055 INFO L226 Difference]: Without dead ends: 14992 [2024-11-22 15:18:37,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:18:37,088 INFO L432 NwaCegarLoop]: 1060 mSDtfsCounter, 3 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4236 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:18:37,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4236 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:18:37,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14992 states. [2024-11-22 15:18:37,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14992 to 14935. [2024-11-22 15:18:37,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14935 states, 11472 states have (on average 1.2716178521617851) internal successors, (14588), 11654 states have internal predecessors, (14588), 2407 states have call successors, (2407), 1029 states have call predecessors, (2407), 1055 states have return successors, (2574), 2383 states have call predecessors, (2574), 2406 states have call successors, (2574) [2024-11-22 15:18:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14935 states to 14935 states and 19569 transitions. [2024-11-22 15:18:37,697 INFO L78 Accepts]: Start accepts. Automaton has 14935 states and 19569 transitions. Word has length 148 [2024-11-22 15:18:37,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:18:37,698 INFO L471 AbstractCegarLoop]: Abstraction has 14935 states and 19569 transitions. [2024-11-22 15:18:37,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 15:18:37,698 INFO L276 IsEmpty]: Start isEmpty. Operand 14935 states and 19569 transitions. [2024-11-22 15:18:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-22 15:18:37,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:18:37,714 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-22 15:18:37,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 15:18:37,715 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:18:37,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:18:37,715 INFO L85 PathProgramCache]: Analyzing trace with hash -455099020, now seen corresponding path program 1 times [2024-11-22 15:18:37,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:18:37,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787599036] [2024-11-22 15:18:37,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:18:37,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:18:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:18:40,996 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-22 15:18:40,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:18:40,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787599036] [2024-11-22 15:18:40,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787599036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:18:40,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:18:40,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 15:18:40,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434743121] [2024-11-22 15:18:40,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:18:40,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 15:18:40,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:18:40,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 15:18:40,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 15:18:40,998 INFO L87 Difference]: Start difference. First operand 14935 states and 19569 transitions. Second operand has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 9 states have internal predecessors, (104), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14)