./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 c7c6ca5d 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-?-c7c6ca5-m [2024-11-09 04:12:12,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:12:12,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 04:12:12,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:12:12,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:12:12,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:12:12,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:12:12,928 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:12:12,929 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 04:12:12,929 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 04:12:12,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:12:12,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:12:12,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:12:12,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:12:12,933 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 04:12:12,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:12:12,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:12:12,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:12:12,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:12:12,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:12:12,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:12:12,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:12:12,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:12:12,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:12:12,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:12:12,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:12:12,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:12:12,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:12:12,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:12:12,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:12:12,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:12:12,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:12:12,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:12:12,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 04:12:12,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:12:12,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:12:12,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 04:12:12,942 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 04:12:12,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:12:12,942 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b42d40a01333bd7cf600d1931e5c326b61c631d3a1040aaad3e0a3658ee3cf [2024-11-09 04:12:13,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:12:13,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:12:13,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:12:13,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:12:13,226 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:12:13,228 INFO L431 ainManager$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 [2024-11-09 04:12:14,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:12:15,044 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:12:15,044 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 [2024-11-09 04:12:15,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963ba4b3b/29ae7e4cf43943a69960944d484a71ae/FLAG5c164cac5 [2024-11-09 04:12:15,081 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963ba4b3b/29ae7e4cf43943a69960944d484a71ae [2024-11-09 04:12:15,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:12:15,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:12:15,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:12:15,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:12:15,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:12:15,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:12:15" (1/1) ... [2024-11-09 04:12:15,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3075d618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:15, skipping insertion in model container [2024-11-09 04:12:15,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:12:15" (1/1) ... [2024-11-09 04:12:15,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:12:15,730 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] [2024-11-09 04:12:15,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:12:15,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:12:15,951 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] [2024-11-09 04:12:15,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:12:16,044 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:12:16,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16 WrapperNode [2024-11-09 04:12:16,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:12:16,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:12:16,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:12:16,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:12:16,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,176 INFO L138 Inliner]: procedures = 100, calls = 348, calls flagged for inlining = 40, calls inlined = 32, statements flattened = 810 [2024-11-09 04:12:16,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:12:16,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:12:16,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:12:16,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:12:16,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,210 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,279 INFO L175 MemorySlicer]: Split 228 memory accesses to 6 slices as follows [2, 12, 14, 65, 32, 103]. 45 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 0, 0, 0, 10]. The 204 writes are split as follows [0, 12, 2, 65, 32, 93]. [2024-11-09 04:12:16,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:12:16,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:12:16,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:12:16,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:12:16,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (1/1) ... [2024-11-09 04:12:16,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:12:16,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 04:12:16,408 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) [2024-11-09 04:12:16,411 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 [2024-11-09 04:12:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 04:12:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 04:12:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 04:12:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 04:12:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 04:12:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 04:12:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_list_voltage_linear [2024-11-09 04:12:16,461 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_list_voltage_linear [2024-11-09 04:12:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 04:12:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 04:12:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 04:12:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 04:12:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 04:12:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 04:12:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 04:12:16,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 04:12:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 04:12:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 04:12:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 04:12:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 04:12:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 04:12:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 04:12:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 04:12:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 04:12:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 04:12:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 04:12:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_unregister [2024-11-09 04:12:16,465 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_unregister [2024-11-09 04:12:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:12:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-09 04:12:16,466 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 04:12:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure rdev_get_drvdata [2024-11-09 04:12:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure rdev_get_drvdata [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-09 04:12:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mtx_of_isl_pmic [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 04:12:16,468 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 04:12:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 04:12:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 04:12:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 04:12:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 04:12:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-09 04:12:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isl_pmic [2024-11-09 04:12:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:12:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:12:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 04:12:16,469 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 04:12:16,781 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:12:16,783 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:12:24,076 INFO L? ?]: Removed 263 outVars from TransFormulas that were not future-live. [2024-11-09 04:12:24,077 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:12:24,100 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:12:24,101 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:12:24,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:12:24 BoogieIcfgContainer [2024-11-09 04:12:24,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:12:24,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:12:24,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:12:24,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:12:24,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:12:15" (1/3) ... [2024-11-09 04:12:24,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54589606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:12:24, skipping insertion in model container [2024-11-09 04:12:24,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:12:16" (2/3) ... [2024-11-09 04:12:24,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54589606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:12:24, skipping insertion in model container [2024-11-09 04:12:24,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:12:24" (3/3) ... [2024-11-09 04:12:24,112 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--regulator--isl6271a-regulator.ko-main.cil.out.i [2024-11-09 04:12:24,129 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:12:24,129 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:12:24,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:12:24,197 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;@797d0bed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:12:24,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:12:24,205 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) [2024-11-09 04:12:24,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 04:12:24,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:12:24,215 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:12:24,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:12:24,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:12:24,221 INFO L85 PathProgramCache]: Analyzing trace with hash 889455037, now seen corresponding path program 1 times [2024-11-09 04:12:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:12:24,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090045872] [2024-11-09 04:12:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:12:24,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:12:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:12:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:12:27,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:12:27,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090045872] [2024-11-09 04:12:27,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090045872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:12:27,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:12:27,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:12:27,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130295478] [2024-11-09 04:12:27,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:12:27,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:12:27,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:12:27,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:12:27,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:12:27,883 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) [2024-11-09 04:12:31,942 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 [] [2024-11-09 04:12:32,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:12:32,543 INFO L93 Difference]: Finished difference Result 530 states and 754 transitions. [2024-11-09 04:12:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:12:32,547 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 [2024-11-09 04:12:32,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:12:32,564 INFO L225 Difference]: With dead ends: 530 [2024-11-09 04:12:32,564 INFO L226 Difference]: Without dead ends: 343 [2024-11-09 04:12:32,570 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 [2024-11-09 04:12:32,574 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 [2024-11-09 04:12:32,577 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] [2024-11-09 04:12:32,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-09 04:12:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 339. [2024-11-09 04:12:32,650 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) [2024-11-09 04:12:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 459 transitions. [2024-11-09 04:12:32,658 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 459 transitions. Word has length 15 [2024-11-09 04:12:32,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:12:32,659 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 459 transitions. [2024-11-09 04:12:32,659 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) [2024-11-09 04:12:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 459 transitions. [2024-11-09 04:12:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 04:12:32,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:12:32,662 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:12:32,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:12:32,664 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:12:32,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:12:32,665 INFO L85 PathProgramCache]: Analyzing trace with hash -480061528, now seen corresponding path program 1 times [2024-11-09 04:12:32,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:12:32,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440851921] [2024-11-09 04:12:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:12:32,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:12:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:12:35,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:12:35,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:12:35,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440851921] [2024-11-09 04:12:35,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440851921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:12:35,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:12:35,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:12:35,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549147734] [2024-11-09 04:12:35,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:12:35,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:12:35,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:12:35,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:12:35,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:12:35,378 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) [2024-11-09 04:12:35,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:12:35,496 INFO L93 Difference]: Finished difference Result 361 states and 485 transitions. [2024-11-09 04:12:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:12:35,497 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 [2024-11-09 04:12:35,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:12:35,503 INFO L225 Difference]: With dead ends: 361 [2024-11-09 04:12:35,506 INFO L226 Difference]: Without dead ends: 350 [2024-11-09 04:12:35,507 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 [2024-11-09 04:12:35,508 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 [2024-11-09 04:12:35,509 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] [2024-11-09 04:12:35,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-09 04:12:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 339. [2024-11-09 04:12:35,540 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) [2024-11-09 04:12:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 458 transitions. [2024-11-09 04:12:35,546 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 458 transitions. Word has length 18 [2024-11-09 04:12:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:12:35,547 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 458 transitions. [2024-11-09 04:12:35,547 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) [2024-11-09 04:12:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 458 transitions. [2024-11-09 04:12:35,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 04:12:35,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:12:35,550 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:12:35,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:12:35,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:12:35,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:12:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash -422803226, now seen corresponding path program 1 times [2024-11-09 04:12:35,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:12:35,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992364753] [2024-11-09 04:12:35,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:12:35,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:12:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:12:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:12:37,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:12:37,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992364753] [2024-11-09 04:12:37,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992364753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:12:37,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:12:37,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:12:37,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447476479] [2024-11-09 04:12:37,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:12:37,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:12:37,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:12:37,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:12:37,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:12:37,800 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) [2024-11-09 04:12:41,839 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 [] [2024-11-09 04:12:42,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:12:42,302 INFO L93 Difference]: Finished difference Result 341 states and 459 transitions. [2024-11-09 04:12:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:12:42,303 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 [2024-11-09 04:12:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:12:42,307 INFO L225 Difference]: With dead ends: 341 [2024-11-09 04:12:42,310 INFO L226 Difference]: Without dead ends: 338 [2024-11-09 04:12:42,311 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 [2024-11-09 04:12:42,312 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 [2024-11-09 04:12:42,312 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] [2024-11-09 04:12:42,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-09 04:12:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2024-11-09 04:12:42,355 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) [2024-11-09 04:12:42,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 456 transitions. [2024-11-09 04:12:42,357 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 456 transitions. Word has length 18 [2024-11-09 04:12:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:12:42,357 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 456 transitions. [2024-11-09 04:12:42,358 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) [2024-11-09 04:12:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 456 transitions. [2024-11-09 04:12:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 04:12:42,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:12:42,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:12:42,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:12:42,364 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:12:42,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:12:42,364 INFO L85 PathProgramCache]: Analyzing trace with hash -222115821, now seen corresponding path program 1 times [2024-11-09 04:12:42,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:12:42,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088945290] [2024-11-09 04:12:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:12:42,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:12:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:12:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:12:44,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:12:44,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088945290] [2024-11-09 04:12:44,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088945290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:12:44,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:12:44,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:12:44,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379685951] [2024-11-09 04:12:44,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:12:44,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:12:44,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:12:44,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:12:44,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:12:44,641 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) [2024-11-09 04:12:48,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:12:49,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:12:49,163 INFO L93 Difference]: Finished difference Result 340 states and 457 transitions. [2024-11-09 04:12:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:12:49,163 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 [2024-11-09 04:12:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:12:49,166 INFO L225 Difference]: With dead ends: 340 [2024-11-09 04:12:49,166 INFO L226 Difference]: Without dead ends: 337 [2024-11-09 04:12:49,166 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 [2024-11-09 04:12:49,167 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 [2024-11-09 04:12:49,168 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] [2024-11-09 04:12:49,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-09 04:12:49,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-11-09 04:12:49,189 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) [2024-11-09 04:12:49,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 454 transitions. [2024-11-09 04:12:49,192 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 454 transitions. Word has length 19 [2024-11-09 04:12:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:12:49,193 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 454 transitions. [2024-11-09 04:12:49,193 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) [2024-11-09 04:12:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 454 transitions. [2024-11-09 04:12:49,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 04:12:49,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:12:49,196 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] [2024-11-09 04:12:49,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:12:49,196 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:12:49,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:12:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1704231305, now seen corresponding path program 1 times [2024-11-09 04:12:49,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:12:49,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200167406] [2024-11-09 04:12:49,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:12:49,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:12:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:12:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:12:51,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:12:51,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200167406] [2024-11-09 04:12:51,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200167406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:12:51,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:12:51,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:12:51,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465016482] [2024-11-09 04:12:51,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:12:51,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:12:51,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:12:51,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:12:51,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:12:51,263 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) [2024-11-09 04:12:55,300 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 [] [2024-11-09 04:12:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:12:55,804 INFO L93 Difference]: Finished difference Result 347 states and 460 transitions. [2024-11-09 04:12:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:12:55,805 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 [2024-11-09 04:12:55,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:12:55,808 INFO L225 Difference]: With dead ends: 347 [2024-11-09 04:12:55,808 INFO L226 Difference]: Without dead ends: 343 [2024-11-09 04:12:55,808 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 [2024-11-09 04:12:55,810 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 [2024-11-09 04:12:55,810 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] [2024-11-09 04:12:55,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-09 04:12:55,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2024-11-09 04:12:55,831 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) [2024-11-09 04:12:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 453 transitions. [2024-11-09 04:12:55,833 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 453 transitions. Word has length 20 [2024-11-09 04:12:55,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:12:55,833 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 453 transitions. [2024-11-09 04:12:55,834 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) [2024-11-09 04:12:55,834 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 453 transitions. [2024-11-09 04:12:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 04:12:55,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:12:55,835 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] [2024-11-09 04:12:55,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:12:55,836 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:12:55,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:12:55,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1291454934, now seen corresponding path program 1 times [2024-11-09 04:12:55,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:12:55,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932745713] [2024-11-09 04:12:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:12:55,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:12:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:12:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:12:57,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:12:57,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932745713] [2024-11-09 04:12:57,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932745713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:12:57,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:12:57,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:12:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550605711] [2024-11-09 04:12:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:12:57,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:12:57,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:12:57,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:12:57,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:12:57,786 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) [2024-11-09 04:13:01,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:13:01,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:13:01,839 INFO L93 Difference]: Finished difference Result 343 states and 454 transitions. [2024-11-09 04:13:02,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:13:02,249 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 [2024-11-09 04:13:02,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:13:02,251 INFO L225 Difference]: With dead ends: 343 [2024-11-09 04:13:02,251 INFO L226 Difference]: Without dead ends: 333 [2024-11-09 04:13:02,251 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 [2024-11-09 04:13:02,252 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 [2024-11-09 04:13:02,253 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] [2024-11-09 04:13:02,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-09 04:13:02,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-11-09 04:13:02,268 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) [2024-11-09 04:13:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 443 transitions. [2024-11-09 04:13:02,271 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 443 transitions. Word has length 21 [2024-11-09 04:13:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:13:02,271 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 443 transitions. [2024-11-09 04:13:02,271 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) [2024-11-09 04:13:02,271 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 443 transitions. [2024-11-09 04:13:02,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 04:13:02,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:13:02,273 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] [2024-11-09 04:13:02,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:13:02,274 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:13:02,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:13:02,274 INFO L85 PathProgramCache]: Analyzing trace with hash -311253703, now seen corresponding path program 1 times [2024-11-09 04:13:02,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:13:02,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360290830] [2024-11-09 04:13:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:13:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:13:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:04,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 04:13:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:04,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:13:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:04,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 04:13:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:04,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 04:13:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:04,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:13:04,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:13:04,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360290830] [2024-11-09 04:13:04,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360290830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:13:04,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:13:04,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:13:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821568579] [2024-11-09 04:13:04,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:13:04,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:13:04,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:13:04,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:13:04,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:13:04,637 INFO L87 Difference]: Start difference. First operand 333 states and 443 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:13:08,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:13:13,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:13:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:13:16,447 INFO L93 Difference]: Finished difference Result 873 states and 1176 transitions. [2024-11-09 04:13:16,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:13:16,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 4 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 [2024-11-09 04:13:16,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:13:16,452 INFO L225 Difference]: With dead ends: 873 [2024-11-09 04:13:16,452 INFO L226 Difference]: Without dead ends: 543 [2024-11-09 04:13:16,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:13:16,455 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 210 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 72 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:13:16,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 623 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 177 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2024-11-09 04:13:16,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-09 04:13:16,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 529. [2024-11-09 04:13:16,487 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) [2024-11-09 04:13:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 708 transitions. [2024-11-09 04:13:16,491 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 708 transitions. Word has length 42 [2024-11-09 04:13:16,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:13:16,491 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 708 transitions. [2024-11-09 04:13:16,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:13:16,491 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 708 transitions. [2024-11-09 04:13:16,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 04:13:16,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:13:16,494 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, 1] [2024-11-09 04:13:16,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 04:13:16,495 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:13:16,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:13:16,495 INFO L85 PathProgramCache]: Analyzing trace with hash -309355711, now seen corresponding path program 1 times [2024-11-09 04:13:16,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:13:16,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620559420] [2024-11-09 04:13:16,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:13:16,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:13:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:18,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 04:13:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:18,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:13:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:18,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 04:13:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:19,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 04:13:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:13:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 04:13:19,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:13:19,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620559420] [2024-11-09 04:13:19,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620559420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:13:19,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:13:19,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:13:19,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210962082] [2024-11-09 04:13:19,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:13:19,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:13:19,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:13:19,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:13:19,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:13:19,048 INFO L87 Difference]: Start difference. First operand 529 states and 708 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:13:23,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:13:27,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:13:31,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:13:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:13:35,096 INFO L93 Difference]: Finished difference Result 543 states and 734 transitions. [2024-11-09 04:13:35,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:13:35,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (6), 5 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 54 [2024-11-09 04:13:35,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:13:35,097 INFO L225 Difference]: With dead ends: 543 [2024-11-09 04:13:35,098 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:13:35,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:13:35,100 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 80 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:13:35,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 611 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 145 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2024-11-09 04:13:35,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:13:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:13:35,101 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) [2024-11-09 04:13:35,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:13:35,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2024-11-09 04:13:35,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:13:35,102 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:13:35,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:13:35,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:13:35,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:13:35,105 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:13:35,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 04:13:35,110 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:13:35,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.