./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.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 d8753c57388e5055354b3fbc6056201b4b60a43a04993bc3e2112ce6b572c942 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 11:57:21,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 11:57:22,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 11:57:22,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 11:57:22,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 11:57:22,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 11:57:22,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 11:57:22,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 11:57:22,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 11:57:22,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 11:57:22,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 11:57:22,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 11:57:22,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 11:57:22,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 11:57:22,078 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 11:57:22,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 11:57:22,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 11:57:22,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 11:57:22,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 11:57:22,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 11:57:22,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 11:57:22,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 11:57:22,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 11:57:22,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 11:57:22,084 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 11:57:22,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 11:57:22,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 11:57:22,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 11:57:22,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 11:57:22,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:57:22,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 11:57:22,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 11:57:22,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 11:57:22,086 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 11:57:22,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 11:57:22,087 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 11:57:22,087 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 11:57:22,087 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 11:57:22,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 11:57:22,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8753c57388e5055354b3fbc6056201b4b60a43a04993bc3e2112ce6b572c942 [2024-11-20 11:57:22,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 11:57:22,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 11:57:22,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 11:57:22,399 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 11:57:22,399 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 11:57:22,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-20 11:57:23,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 11:57:24,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 11:57:24,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-20 11:57:24,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec9334fa/33318923e4684025bd2e0161f481719a/FLAG91f8687ca [2024-11-20 11:57:24,455 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ec9334fa/33318923e4684025bd2e0161f481719a [2024-11-20 11:57:24,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 11:57:24,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 11:57:24,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 11:57:24,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 11:57:24,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 11:57:24,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:24" (1/1) ... [2024-11-20 11:57:24,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37abc468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:24, skipping insertion in model container [2024-11-20 11:57:24,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:24" (1/1) ... [2024-11-20 11:57:24,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 11:57:25,632 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2024-11-20 11:57:25,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:57:25,712 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 11:57:25,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3278] [2024-11-20 11:57:25,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3281] [2024-11-20 11:57:25,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3284] [2024-11-20 11:57:25,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3287] [2024-11-20 11:57:25,820 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)); [3300] [2024-11-20 11:57:25,915 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2024-11-20 11:57:25,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:57:26,031 INFO L204 MainTranslator]: Completed translation [2024-11-20 11:57:26,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26 WrapperNode [2024-11-20 11:57:26,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 11:57:26,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 11:57:26,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 11:57:26,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 11:57:26,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,271 INFO L138 Inliner]: procedures = 141, calls = 665, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 2237 [2024-11-20 11:57:26,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 11:57:26,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 11:57:26,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 11:57:26,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 11:57:26,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,311 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,596 INFO L175 MemorySlicer]: Split 339 memory accesses to 8 slices as follows [2, 292, 1, 9, 6, 24, 3, 2]. 86 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 0, 0, 6, 0, 0, 0]. The 169 writes are split as follows [0, 138, 0, 2, 0, 24, 3, 2]. [2024-11-20 11:57:26,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,705 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 11:57:26,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 11:57:26,758 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 11:57:26,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 11:57:26,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (1/1) ... [2024-11-20 11:57:26,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:57:26,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 11:57:26,802 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) [2024-11-20 11:57:26,805 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 [2024-11-20 11:57:26,847 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-20 11:57:26,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-20 11:57:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 11:57:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 11:57:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 11:57:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 11:57:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 11:57:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 11:57:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-20 11:57:26,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-20 11:57:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2024-11-20 11:57:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2024-11-20 11:57:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-20 11:57:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-20 11:57:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-20 11:57:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-20 11:57:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-20 11:57:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-20 11:57:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-20 11:57:26,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-20 11:57:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 11:57:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 11:57:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 11:57:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 11:57:26,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 11:57:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 11:57:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-20 11:57:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-20 11:57:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-20 11:57:26,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-20 11:57:26,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 11:57:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 11:57:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 11:57:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 11:57:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 11:57:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 11:57:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 11:57:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 11:57:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-20 11:57:26,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-20 11:57:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2024-11-20 11:57:26,854 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2024-11-20 11:57:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure retry_transmit [2024-11-20 11:57:26,855 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_transmit [2024-11-20 11:57:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-20 11:57:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-20 11:57:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-20 11:57:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-20 11:57:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-20 11:57:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-20 11:57:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-20 11:57:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-20 11:57:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-20 11:57:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-20 11:57:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-20 11:57:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-20 11:57:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-20 11:57:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-20 11:57:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-20 11:57:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-20 11:57:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-20 11:57:26,857 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-20 11:57:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-20 11:57:26,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-20 11:57:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-20 11:57:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-20 11:57:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_close [2024-11-20 11:57:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_close [2024-11-20 11:57:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure remove_msg [2024-11-20 11:57:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_msg [2024-11-20 11:57:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2024-11-20 11:57:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2024-11-20 11:57:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid [2024-11-20 11:57:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid [2024-11-20 11:57:26,859 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-20 11:57:26,859 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-20 11:57:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unlock [2024-11-20 11:57:26,860 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unlock [2024-11-20 11:57:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 11:57:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 11:57:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 11:57:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 11:57:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 11:57:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 11:57:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 11:57:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 11:57:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-20 11:57:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-20 11:57:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-20 11:57:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-20 11:57:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-20 11:57:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-20 11:57:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 11:57:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 11:57:26,862 INFO L130 BoogieDeclarations]: Found specification of procedure add_msg [2024-11-20 11:57:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure add_msg [2024-11-20 11:57:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 11:57:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2024-11-20 11:57:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2024-11-20 11:57:26,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-20 11:57:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-20 11:57:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-20 11:57:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-20 11:57:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_poll [2024-11-20 11:57:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_poll [2024-11-20 11:57:26,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 11:57:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2024-11-20 11:57:26,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2024-11-20 11:57:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 11:57:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 11:57:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 11:57:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 11:57:26,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 11:57:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 11:57:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 11:57:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 11:57:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-20 11:57:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure findClient [2024-11-20 11:57:26,866 INFO L138 BoogieDeclarations]: Found implementation of procedure findClient [2024-11-20 11:57:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2024-11-20 11:57:26,867 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2024-11-20 11:57:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 11:57:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 11:57:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 11:57:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 11:57:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 11:57:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 11:57:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 11:57:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-20 11:57:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-20 11:57:26,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-20 11:57:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2024-11-20 11:57:26,868 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2024-11-20 11:57:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-20 11:57:26,869 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-20 11:57:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure remove_client_block [2024-11-20 11:57:26,869 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_client_block [2024-11-20 11:57:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-20 11:57:26,869 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-20 11:57:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 11:57:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure on_receive_block [2024-11-20 11:57:26,870 INFO L138 BoogieDeclarations]: Found implementation of procedure on_receive_block [2024-11-20 11:57:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-20 11:57:26,870 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-20 11:57:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure flush [2024-11-20 11:57:26,871 INFO L138 BoogieDeclarations]: Found implementation of procedure flush [2024-11-20 11:57:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_set_termios [2024-11-20 11:57:26,871 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_set_termios [2024-11-20 11:57:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-20 11:57:26,871 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-20 11:57:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_ioctl [2024-11-20 11:57:26,872 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_ioctl [2024-11-20 11:57:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure remove_from_tx_queue [2024-11-20 11:57:26,872 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_from_tx_queue [2024-11-20 11:57:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 11:57:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 11:57:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 11:57:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 11:57:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 11:57:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 11:57:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 11:57:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 11:57:26,873 INFO L130 BoogieDeclarations]: Found specification of procedure tty_lock [2024-11-20 11:57:26,873 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_lock [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_transmit [2024-11-20 11:57:26,874 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_transmit [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-20 11:57:26,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 11:57:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 11:57:27,301 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 11:57:27,304 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 11:57:27,437 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-20 11:57:37,759 INFO L? ?]: Removed 1035 outVars from TransFormulas that were not future-live. [2024-11-20 11:57:37,759 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 11:57:37,808 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 11:57:37,809 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 11:57:37,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:57:37 BoogieIcfgContainer [2024-11-20 11:57:37,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 11:57:37,812 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 11:57:37,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 11:57:37,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 11:57:37,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:57:24" (1/3) ... [2024-11-20 11:57:37,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5386018b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:57:37, skipping insertion in model container [2024-11-20 11:57:37,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:26" (2/3) ... [2024-11-20 11:57:37,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5386018b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:57:37, skipping insertion in model container [2024-11-20 11:57:37,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:57:37" (3/3) ... [2024-11-20 11:57:37,820 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-20 11:57:37,837 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 11:57:37,838 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 11:57:37,934 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 11:57:37,941 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;@6bd14095, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 11:57:37,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 11:57:37,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 839 states, 604 states have (on average 1.4072847682119205) internal successors, (850), 640 states have internal predecessors, (850), 192 states have call successors, (192), 42 states have call predecessors, (192), 41 states have return successors, (188), 178 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-20 11:57:37,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 11:57:37,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:57:37,968 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:57:37,968 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:57:37,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:57:37,974 INFO L85 PathProgramCache]: Analyzing trace with hash -205435136, now seen corresponding path program 1 times [2024-11-20 11:57:37,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:57:37,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20259927] [2024-11-20 11:57:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:57:37,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:57:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:57:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:57:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 11:57:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 11:57:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:57:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 11:57:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 11:57:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 11:57:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 11:57:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 11:57:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:38,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-20 11:57:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:39,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-20 11:57:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:39,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 11:57:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:39,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 11:57:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:39,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 11:57:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-20 11:57:39,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:57:39,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20259927] [2024-11-20 11:57:39,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20259927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:57:39,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:57:39,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 11:57:39,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589142418] [2024-11-20 11:57:39,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:57:39,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 11:57:39,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:57:39,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 11:57:39,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 11:57:39,109 INFO L87 Difference]: Start difference. First operand has 839 states, 604 states have (on average 1.4072847682119205) internal successors, (850), 640 states have internal predecessors, (850), 192 states have call successors, (192), 42 states have call predecessors, (192), 41 states have return successors, (188), 178 states have call predecessors, (188), 188 states have call successors, (188) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 11:57:41,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:57:48,522 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 [] [2024-11-20 11:57:49,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:57:49,128 INFO L93 Difference]: Finished difference Result 1866 states and 2858 transitions. [2024-11-20 11:57:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 11:57:49,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 174 [2024-11-20 11:57:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:57:49,168 INFO L225 Difference]: With dead ends: 1866 [2024-11-20 11:57:49,168 INFO L226 Difference]: Without dead ends: 1015 [2024-11-20 11:57:49,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 11:57:49,185 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 1649 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 1182 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 2765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1182 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-20 11:57:49,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 1701 Invalid, 2765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1182 Valid, 1582 Invalid, 1 Unknown, 0 Unchecked, 9.7s Time] [2024-11-20 11:57:49,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-11-20 11:57:49,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 822. [2024-11-20 11:57:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 594 states have (on average 1.387205387205387) internal successors, (824), 624 states have internal predecessors, (824), 187 states have call successors, (187), 41 states have call predecessors, (187), 40 states have return successors, (186), 176 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-20 11:57:49,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1197 transitions. [2024-11-20 11:57:49,384 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1197 transitions. Word has length 174 [2024-11-20 11:57:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:57:49,386 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 1197 transitions. [2024-11-20 11:57:49,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-20 11:57:49,386 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1197 transitions. [2024-11-20 11:57:49,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 11:57:49,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:57:49,390 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:57:49,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 11:57:49,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:57:49,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:57:49,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1866130932, now seen corresponding path program 1 times [2024-11-20 11:57:49,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:57:49,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507096487] [2024-11-20 11:57:49,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:57:49,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:57:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:57:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:57:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 11:57:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 11:57:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:57:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 11:57:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 11:57:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 11:57:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 11:57:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:57:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:57:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 11:57:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-20 11:57:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-20 11:57:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 11:57:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 11:57:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 11:57:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:57:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-20 11:57:49,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:57:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507096487] [2024-11-20 11:57:49,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507096487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:57:49,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:57:49,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 11:57:49,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202945455] [2024-11-20 11:57:49,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:57:49,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 11:57:49,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:57:49,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 11:57:49,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:57:49,876 INFO L87 Difference]: Start difference. First operand 822 states and 1197 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 11:57:53,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:02,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:06,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:07,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:58:07,657 INFO L93 Difference]: Finished difference Result 2239 states and 3341 transitions. [2024-11-20 11:58:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 11:58:07,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 174 [2024-11-20 11:58:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:58:07,671 INFO L225 Difference]: With dead ends: 2239 [2024-11-20 11:58:07,671 INFO L226 Difference]: Without dead ends: 1456 [2024-11-20 11:58:07,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-20 11:58:07,677 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 1962 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 3096 mSolverCounterSat, 1138 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 4236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 3096 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2024-11-20 11:58:07,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 2338 Invalid, 4236 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1138 Valid, 3096 Invalid, 2 Unknown, 0 Unchecked, 17.4s Time] [2024-11-20 11:58:07,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2024-11-20 11:58:07,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1126. [2024-11-20 11:58:07,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 806 states have (on average 1.3870967741935485) internal successors, (1118), 853 states have internal predecessors, (1118), 253 states have call successors, (253), 67 states have call predecessors, (253), 66 states have return successors, (252), 237 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-20 11:58:07,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1623 transitions. [2024-11-20 11:58:07,788 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1623 transitions. Word has length 174 [2024-11-20 11:58:07,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:58:07,789 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1623 transitions. [2024-11-20 11:58:07,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 11:58:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1623 transitions. [2024-11-20 11:58:07,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-20 11:58:07,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:58:07,794 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:58:07,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 11:58:07,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:58:07,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:58:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1926230435, now seen corresponding path program 1 times [2024-11-20 11:58:07,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:58:07,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606021592] [2024-11-20 11:58:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:58:07,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:58:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:58:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:58:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 11:58:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 11:58:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:58:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 11:58:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 11:58:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 11:58:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 11:58:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 11:58:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-20 11:58:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-20 11:58:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 11:58:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 11:58:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 11:58:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-20 11:58:08,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:58:08,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606021592] [2024-11-20 11:58:08,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606021592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:58:08,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:58:08,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 11:58:08,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397857157] [2024-11-20 11:58:08,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:58:08,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 11:58:08,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:58:08,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 11:58:08,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-20 11:58:08,401 INFO L87 Difference]: Start difference. First operand 1126 states and 1623 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 11:58:10,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:14,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:18,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:30,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:34,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:40,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:58:45,298 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 [] [2024-11-20 11:58:45,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:58:45,684 INFO L93 Difference]: Finished difference Result 6696 states and 10561 transitions. [2024-11-20 11:58:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 11:58:45,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2024-11-20 11:58:45,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:58:45,762 INFO L225 Difference]: With dead ends: 6696 [2024-11-20 11:58:45,762 INFO L226 Difference]: Without dead ends: 5619 [2024-11-20 11:58:45,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2024-11-20 11:58:45,774 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 6952 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 5156 mSolverCounterSat, 3529 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7248 SdHoareTripleChecker+Valid, 3183 SdHoareTripleChecker+Invalid, 8690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3529 IncrementalHoareTripleChecker+Valid, 5156 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2024-11-20 11:58:45,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7248 Valid, 3183 Invalid, 8690 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3529 Valid, 5156 Invalid, 5 Unknown, 0 Unchecked, 36.3s Time] [2024-11-20 11:58:45,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5619 states. [2024-11-20 11:58:46,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5619 to 4385. [2024-11-20 11:58:46,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4385 states, 3154 states have (on average 1.3858592263792011) internal successors, (4371), 3335 states have internal predecessors, (4371), 961 states have call successors, (961), 254 states have call predecessors, (961), 269 states have return successors, (1241), 919 states have call predecessors, (1241), 960 states have call successors, (1241) [2024-11-20 11:58:46,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4385 states to 4385 states and 6573 transitions. [2024-11-20 11:58:46,138 INFO L78 Accepts]: Start accepts. Automaton has 4385 states and 6573 transitions. Word has length 184 [2024-11-20 11:58:46,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:58:46,140 INFO L471 AbstractCegarLoop]: Abstraction has 4385 states and 6573 transitions. [2024-11-20 11:58:46,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 11:58:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 4385 states and 6573 transitions. [2024-11-20 11:58:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-20 11:58:46,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:58:46,143 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:58:46,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 11:58:46,144 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:58:46,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:58:46,144 INFO L85 PathProgramCache]: Analyzing trace with hash 474115636, now seen corresponding path program 1 times [2024-11-20 11:58:46,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:58:46,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611395778] [2024-11-20 11:58:46,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:58:46,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:58:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:58:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:58:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-20 11:58:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-20 11:58:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:58:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-20 11:58:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-20 11:58:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-20 11:58:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 11:58:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:58:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 11:58:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-20 11:58:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-20 11:58:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-20 11:58:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 11:58:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-20 11:58:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-20 11:58:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:58:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-20 11:58:46,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:58:46,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611395778] [2024-11-20 11:58:46,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611395778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:58:46,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:58:46,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 11:58:46,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026369585] [2024-11-20 11:58:46,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:58:46,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 11:58:46,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:58:46,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 11:58:46,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-20 11:58:46,771 INFO L87 Difference]: Start difference. First operand 4385 states and 6573 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-20 11:58:50,779 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 []