./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.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 b7b42d40a01333bd7cf600d1931e5c326b61c631d3a1040aaad3e0a3658ee3cf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:14:43,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:14:43,712 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:14:43,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:14:43,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:14:43,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:14:43,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:14:43,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:14:43,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:14:43,770 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:14:43,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:14:43,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:14:43,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:14:43,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:14:43,774 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:14:43,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:14:43,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:14:43,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:14:43,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:14:43,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:14:43,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:14:43,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:14:43,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:14:43,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:14:43,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:14:43,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:14:43,778 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:14:43,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:14:43,779 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:14:43,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:14:43,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:14:43,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:14:43,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:14:43,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:14:43,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:14:43,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:14:43,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:14:43,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:14:43,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:14:43,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b42d40a01333bd7cf600d1931e5c326b61c631d3a1040aaad3e0a3658ee3cf [2024-11-19 03:14:44,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:14:44,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:14:44,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:14:44,115 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:14:44,115 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:14:44,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-19 03:14:45,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:14:45,974 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:14:45,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-19 03:14:46,000 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59a1ad314/3c3662fbbc394d298de8ca0aa900d763/FLAG8a078f18f [2024-11-19 03:14:46,014 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59a1ad314/3c3662fbbc394d298de8ca0aa900d763 [2024-11-19 03:14:46,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:14:46,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:14:46,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:14:46,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:14:46,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:14:46,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:14:46" (1/1) ... [2024-11-19 03:14:46,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9fedb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:46, skipping insertion in model container [2024-11-19 03:14:46,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:14:46" (1/1) ... [2024-11-19 03:14:46,108 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:14:46,799 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i[73128,73141] [2024-11-19 03:14:46,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:14:46,968 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:14:47,145 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i[73128,73141] [2024-11-19 03:14:47,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:14:47,215 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:14:47,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47 WrapperNode [2024-11-19 03:14:47,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:14:47,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:14:47,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:14:47,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:14:47,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,343 INFO L138 Inliner]: procedures = 100, calls = 348, calls flagged for inlining = 40, calls inlined = 32, statements flattened = 810 [2024-11-19 03:14:47,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:14:47,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:14:47,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:14:47,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:14:47,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,461 INFO L175 MemorySlicer]: Split 228 memory accesses to 6 slices as follows [2, 12, 65, 14, 103, 32]. 45 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 0, 0, 10, 0]. The 204 writes are split as follows [0, 12, 65, 2, 93, 32]. [2024-11-19 03:14:47,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,495 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:14:47,528 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:14:47,528 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:14:47,528 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:14:47,529 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (1/1) ... [2024-11-19 03:14:47,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:14:47,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:14:47,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 03:14:47,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 03:14:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:14:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:14:47,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:14:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:14:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:14:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:14:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2024-11-19 03:14:47,644 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2024-11-19 03:14:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:14:47,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:14:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:14:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:14:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:14:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:14:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:14:47,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:14:47,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:14:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:14:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:14:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:14:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:14:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:14:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-19 03:14:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-19 03:14:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:14:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:14:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2024-11-19 03:14:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2024-11-19 03:14:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:14:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-19 03:14:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-19 03:14:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:14:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:14:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:14:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:14:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:14:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:14:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:14:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:14:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:14:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:14:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:14:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:14:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:14:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:14:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2024-11-19 03:14:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2024-11-19 03:14:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:14:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-19 03:14:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-19 03:14:47,652 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-19 03:14:47,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-19 03:14:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:14:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:14:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:14:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:14:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:14:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:14:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-19 03:14:47,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-19 03:14:47,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:14:47,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:14:47,654 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-19 03:14:47,654 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-19 03:14:47,948 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:14:47,950 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:14:55,123 INFO L? ?]: Removed 263 outVars from TransFormulas that were not future-live. [2024-11-19 03:14:55,123 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:14:55,139 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:14:55,140 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 03:14:55,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:55 BoogieIcfgContainer [2024-11-19 03:14:55,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:14:55,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:14:55,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:14:55,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:14:55,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:14:46" (1/3) ... [2024-11-19 03:14:55,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff609c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:14:55, skipping insertion in model container [2024-11-19 03:14:55,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:47" (2/3) ... [2024-11-19 03:14:55,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff609c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:14:55, skipping insertion in model container [2024-11-19 03:14:55,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:55" (3/3) ... [2024-11-19 03:14:55,150 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-19 03:14:55,168 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:14:55,169 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:14:55,257 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:14:55,264 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;@7520ab00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:14:55,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:14:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 144 states have (on average 1.375) internal successors, (198), 152 states have internal predecessors, (198), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-19 03:14:55,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 03:14:55,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:55,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:14:55,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:55,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:55,286 INFO L85 PathProgramCache]: Analyzing trace with hash 889455037, now seen corresponding path program 1 times [2024-11-19 03:14:55,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:55,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807751026] [2024-11-19 03:14:55,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:55,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:14:58,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:58,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807751026] [2024-11-19 03:14:58,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807751026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:58,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:58,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:14:58,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404857384] [2024-11-19 03:14:58,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:58,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:14:58,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:58,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:14:58,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:14:58,868 INFO L87 Difference]: Start difference. First operand has 186 states, 144 states have (on average 1.375) internal successors, (198), 152 states have internal predecessors, (198), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:02,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:15:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:15:03,546 INFO L93 Difference]: Finished difference Result 530 states and 754 transitions. [2024-11-19 03:15:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:15:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-19 03:15:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:15:03,564 INFO L225 Difference]: With dead ends: 530 [2024-11-19 03:15:03,565 INFO L226 Difference]: Without dead ends: 343 [2024-11-19 03:15:03,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:03,573 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 216 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-19 03:15:03,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 480 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-11-19 03:15:03,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-19 03:15:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 339. [2024-11-19 03:15:03,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 266 states have (on average 1.3571428571428572) internal successors, (361), 273 states have internal predecessors, (361), 52 states have call successors, (52), 21 states have call predecessors, (52), 20 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 03:15:03,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 459 transitions. [2024-11-19 03:15:03,642 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 459 transitions. Word has length 15 [2024-11-19 03:15:03,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:15:03,643 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 459 transitions. [2024-11-19 03:15:03,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:03,644 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 459 transitions. [2024-11-19 03:15:03,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 03:15:03,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:15:03,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:15:03,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:15:03,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:15:03,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:15:03,649 INFO L85 PathProgramCache]: Analyzing trace with hash -480061528, now seen corresponding path program 1 times [2024-11-19 03:15:03,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:15:03,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086522564] [2024-11-19 03:15:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:15:03,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:15:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:15:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:15:06,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:15:06,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086522564] [2024-11-19 03:15:06,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086522564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:15:06,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:15:06,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:15:06,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782783605] [2024-11-19 03:15:06,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:15:06,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:15:06,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:15:06,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:15:06,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:06,283 INFO L87 Difference]: Start difference. First operand 339 states and 459 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:06,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:15:06,443 INFO L93 Difference]: Finished difference Result 361 states and 485 transitions. [2024-11-19 03:15:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:15:06,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-19 03:15:06,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:15:06,447 INFO L225 Difference]: With dead ends: 361 [2024-11-19 03:15:06,451 INFO L226 Difference]: Without dead ends: 350 [2024-11-19 03:15:06,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:06,455 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 238 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:15:06,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 268 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:15:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-19 03:15:06,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 339. [2024-11-19 03:15:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 266 states have (on average 1.3533834586466165) internal successors, (360), 273 states have internal predecessors, (360), 52 states have call successors, (52), 21 states have call predecessors, (52), 20 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 03:15:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 458 transitions. [2024-11-19 03:15:06,508 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 458 transitions. Word has length 18 [2024-11-19 03:15:06,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:15:06,509 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 458 transitions. [2024-11-19 03:15:06,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 458 transitions. [2024-11-19 03:15:06,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 03:15:06,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:15:06,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:15:06,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:15:06,512 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:15:06,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:15:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash -422803226, now seen corresponding path program 1 times [2024-11-19 03:15:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:15:06,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600420064] [2024-11-19 03:15:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:15:06,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:15:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:15:08,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:15:08,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:15:08,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600420064] [2024-11-19 03:15:08,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600420064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:15:08,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:15:08,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:15:08,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917228355] [2024-11-19 03:15:08,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:15:08,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:15:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:15:08,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:15:08,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:08,995 INFO L87 Difference]: Start difference. First operand 339 states and 458 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:13,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:15:13,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:15:13,520 INFO L93 Difference]: Finished difference Result 341 states and 459 transitions. [2024-11-19 03:15:13,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:15:13,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-19 03:15:13,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:15:13,524 INFO L225 Difference]: With dead ends: 341 [2024-11-19 03:15:13,525 INFO L226 Difference]: Without dead ends: 338 [2024-11-19 03:15:13,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:13,526 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 226 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-19 03:15:13,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 240 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-19 03:15:13,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-19 03:15:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-11-19 03:15:13,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 266 states have (on average 1.349624060150376) internal successors, (359), 272 states have internal predecessors, (359), 51 states have call successors, (51), 21 states have call predecessors, (51), 20 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 03:15:13,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 456 transitions. [2024-11-19 03:15:13,558 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 456 transitions. Word has length 18 [2024-11-19 03:15:13,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:15:13,558 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 456 transitions. [2024-11-19 03:15:13,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:13,559 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 456 transitions. [2024-11-19 03:15:13,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 03:15:13,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:15:13,563 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:15:13,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:15:13,563 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:15:13,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:15:13,564 INFO L85 PathProgramCache]: Analyzing trace with hash -222115821, now seen corresponding path program 1 times [2024-11-19 03:15:13,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:15:13,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478474856] [2024-11-19 03:15:13,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:15:13,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:15:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:15:15,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:15:15,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:15:15,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478474856] [2024-11-19 03:15:15,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478474856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:15:15,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:15:15,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:15:15,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437413070] [2024-11-19 03:15:15,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:15:15,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:15:15,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:15:15,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:15:15,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:15,741 INFO L87 Difference]: Start difference. First operand 338 states and 456 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:19,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:15:20,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:15:20,257 INFO L93 Difference]: Finished difference Result 340 states and 457 transitions. [2024-11-19 03:15:20,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:15:20,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-19 03:15:20,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:15:20,260 INFO L225 Difference]: With dead ends: 340 [2024-11-19 03:15:20,260 INFO L226 Difference]: Without dead ends: 337 [2024-11-19 03:15:20,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:20,262 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 223 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-19 03:15:20,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 238 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-19 03:15:20,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-19 03:15:20,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-19 03:15:20,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 266 states have (on average 1.3458646616541354) internal successors, (358), 271 states have internal predecessors, (358), 50 states have call successors, (50), 21 states have call predecessors, (50), 20 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 03:15:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 454 transitions. [2024-11-19 03:15:20,283 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 454 transitions. Word has length 19 [2024-11-19 03:15:20,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:15:20,283 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 454 transitions. [2024-11-19 03:15:20,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:20,283 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 454 transitions. [2024-11-19 03:15:20,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-19 03:15:20,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:15:20,285 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:15:20,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:15:20,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:15:20,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:15:20,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1704231305, now seen corresponding path program 1 times [2024-11-19 03:15:20,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:15:20,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682667475] [2024-11-19 03:15:20,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:15:20,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:15:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:15:22,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:15:22,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:15:22,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682667475] [2024-11-19 03:15:22,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682667475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:15:22,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:15:22,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:15:22,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102871100] [2024-11-19 03:15:22,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:15:22,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:15:22,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:15:22,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:15:22,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:22,581 INFO L87 Difference]: Start difference. First operand 337 states and 454 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:26,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:15:27,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:15:27,138 INFO L93 Difference]: Finished difference Result 347 states and 460 transitions. [2024-11-19 03:15:27,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:15:27,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-19 03:15:27,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:15:27,141 INFO L225 Difference]: With dead ends: 347 [2024-11-19 03:15:27,141 INFO L226 Difference]: Without dead ends: 343 [2024-11-19 03:15:27,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:27,143 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 185 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-19 03:15:27,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 267 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-19 03:15:27,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-19 03:15:27,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2024-11-19 03:15:27,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 270 states have (on average 1.3296296296296297) internal successors, (359), 273 states have internal predecessors, (359), 48 states have call successors, (48), 23 states have call predecessors, (48), 22 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 03:15:27,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 453 transitions. [2024-11-19 03:15:27,166 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 453 transitions. Word has length 20 [2024-11-19 03:15:27,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:15:27,167 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 453 transitions. [2024-11-19 03:15:27,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:27,167 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 453 transitions. [2024-11-19 03:15:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 03:15:27,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:15:27,169 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:15:27,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:15:27,169 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:15:27,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:15:27,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1291454934, now seen corresponding path program 1 times [2024-11-19 03:15:27,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:15:27,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197858676] [2024-11-19 03:15:27,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:15:27,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:15:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:15:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:15:29,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:15:29,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197858676] [2024-11-19 03:15:29,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197858676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:15:29,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:15:29,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:15:29,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218384652] [2024-11-19 03:15:29,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:15:29,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:15:29,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:15:29,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:15:29,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:29,199 INFO L87 Difference]: Start difference. First operand 341 states and 453 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:33,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:15:33,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:15:33,251 INFO L93 Difference]: Finished difference Result 343 states and 454 transitions. [2024-11-19 03:15:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:15:33,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-19 03:15:33,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:15:33,656 INFO L225 Difference]: With dead ends: 343 [2024-11-19 03:15:33,656 INFO L226 Difference]: Without dead ends: 333 [2024-11-19 03:15:33,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:33,659 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 215 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:15:33,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 233 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:15:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-19 03:15:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-19 03:15:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 263 states have (on average 1.3307984790874525) internal successors, (350), 265 states have internal predecessors, (350), 47 states have call successors, (47), 23 states have call predecessors, (47), 22 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-19 03:15:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 443 transitions. [2024-11-19 03:15:33,683 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 443 transitions. Word has length 21 [2024-11-19 03:15:33,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:15:33,683 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 443 transitions. [2024-11-19 03:15:33,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 443 transitions. [2024-11-19 03:15:33,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-19 03:15:33,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:15:33,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:15:33,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:15:33,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:15:33,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:15:33,688 INFO L85 PathProgramCache]: Analyzing trace with hash -311253703, now seen corresponding path program 1 times [2024-11-19 03:15:33,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:15:33,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175658992] [2024-11-19 03:15:33,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:15:33,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:15:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:15:35,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:15:35,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:15:35,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175658992] [2024-11-19 03:15:35,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175658992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:15:35,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:15:35,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:15:35,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517914833] [2024-11-19 03:15:35,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:15:35,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:15:35,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:15:35,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:15:35,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:35,837 INFO L87 Difference]: Start difference. First operand 333 states and 443 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 03:15:36,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:15:36,105 INFO L93 Difference]: Finished difference Result 859 states and 1150 transitions. [2024-11-19 03:15:36,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:15:36,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-11-19 03:15:36,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:15:36,109 INFO L225 Difference]: With dead ends: 859 [2024-11-19 03:15:36,109 INFO L226 Difference]: Without dead ends: 529 [2024-11-19 03:15:36,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:36,111 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 132 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:15:36,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 436 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:15:36,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-19 03:15:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2024-11-19 03:15:36,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 431 states have (on average 1.3433874709976799) internal successors, (579), 435 states have internal predecessors, (579), 65 states have call successors, (65), 33 states have call predecessors, (65), 32 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-19 03:15:36,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 708 transitions. [2024-11-19 03:15:36,145 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 708 transitions. Word has length 42 [2024-11-19 03:15:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:15:36,145 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 708 transitions. [2024-11-19 03:15:36,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 03:15:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 708 transitions. [2024-11-19 03:15:36,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-19 03:15:36,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:15:36,148 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:15:36,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:15:36,149 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:15:36,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:15:36,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1030371787, now seen corresponding path program 1 times [2024-11-19 03:15:36,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:15:36,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433751484] [2024-11-19 03:15:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:15:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:15:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:15:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 03:15:38,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:15:38,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433751484] [2024-11-19 03:15:38,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433751484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:15:38,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:15:38,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:15:38,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758947574] [2024-11-19 03:15:38,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:15:38,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:15:38,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:15:38,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:15:38,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:38,511 INFO L87 Difference]: Start difference. First operand 529 states and 708 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 03:15:42,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:15:43,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:15:43,018 INFO L93 Difference]: Finished difference Result 529 states and 708 transitions. [2024-11-19 03:15:43,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:15:43,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2024-11-19 03:15:43,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:15:43,021 INFO L225 Difference]: With dead ends: 529 [2024-11-19 03:15:43,021 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 03:15:43,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:15:43,023 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 22 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-19 03:15:43,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 409 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-19 03:15:43,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 03:15:43,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 03:15:43,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:15:43,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 03:15:43,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2024-11-19 03:15:43,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:15:43,025 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 03:15:43,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 03:15:43,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 03:15:43,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 03:15:43,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 03:15:43,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:15:43,032 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:15:43,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.