./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 06:16:08,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 06:16:08,248 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-06 06:16:08,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 06:16:08,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 06:16:08,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 06:16:08,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 06:16:08,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 06:16:08,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 06:16:08,282 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 06:16:08,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 06:16:08,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 06:16:08,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 06:16:08,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 06:16:08,283 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 06:16:08,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 06:16:08,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 06:16:08,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 06:16:08,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 06:16:08,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 06:16:08,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 06:16:08,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 06:16:08,284 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 06:16:08,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 06:16:08,284 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 06:16:08,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 06:16:08,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 06:16:08,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 06:16:08,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 06:16:08,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 06:16:08,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 06:16:08,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 06:16:08,286 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 [2025-02-06 06:16:08,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 06:16:08,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 06:16:08,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 06:16:08,537 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 06:16:08,537 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 06:16:08,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2025-02-06 06:16:09,782 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5bb645b45/40c73547c72b47bba5f1fbbc426c3863/FLAGefc84cc88 [2025-02-06 06:16:10,171 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 06:16:10,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2025-02-06 06:16:10,198 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5bb645b45/40c73547c72b47bba5f1fbbc426c3863/FLAGefc84cc88 [2025-02-06 06:16:10,360 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5bb645b45/40c73547c72b47bba5f1fbbc426c3863 [2025-02-06 06:16:10,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 06:16:10,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 06:16:10,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 06:16:10,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 06:16:10,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 06:16:10,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:16:10" (1/1) ... [2025-02-06 06:16:10,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d11c697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:10, skipping insertion in model container [2025-02-06 06:16:10,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:16:10" (1/1) ... [2025-02-06 06:16:10,428 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 06:16:10,924 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2025-02-06 06:16:10,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 06:16:10,972 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 06:16:11,088 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2025-02-06 06:16:11,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 06:16:11,168 INFO L204 MainTranslator]: Completed translation [2025-02-06 06:16:11,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11 WrapperNode [2025-02-06 06:16:11,169 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 06:16:11,169 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 06:16:11,169 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 06:16:11,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 06:16:11,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,280 INFO L138 Inliner]: procedures = 129, calls = 755, calls flagged for inlining = 53, calls inlined = 47, statements flattened = 2485 [2025-02-06 06:16:11,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 06:16:11,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 06:16:11,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 06:16:11,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 06:16:11,287 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,404 INFO L175 MemorySlicer]: Split 360 memory accesses to 17 slices as follows [2, 121, 8, 7, 1, 42, 19, 2, 2, 49, 1, 1, 6, 16, 51, 8, 24]. 34 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 8, 6, 0]. The 228 writes are split as follows [0, 30, 3, 6, 0, 42, 19, 1, 0, 42, 1, 1, 0, 16, 43, 0, 24]. [2025-02-06 06:16:11,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,463 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,501 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 06:16:11,502 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 06:16:11,502 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 06:16:11,502 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 06:16:11,503 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (1/1) ... [2025-02-06 06:16:11,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 06:16:11,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 06:16:11,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 06:16:11,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 06:16:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2025-02-06 06:16:11,543 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-02-06 06:16:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_remove [2025-02-06 06:16:11,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_remove [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-06 06:16:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-06 06:16:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-06 06:16:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-06 06:16:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-06 06:16:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-02-06 06:16:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-02-06 06:16:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-02-06 06:16:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-02-06 06:16:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2025-02-06 06:16:11,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 06:16:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 06:16:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 06:16:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2025-02-06 06:16:11,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_modify_write_reg [2025-02-06 06:16:11,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_modify_write_reg [2025-02-06 06:16:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pch_phub_mutex [2025-02-06 06:16:11,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pch_phub_mutex [2025-02-06 06:16:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-02-06 06:16:11,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-02-06 06:16:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2025-02-06 06:16:11,550 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-06 06:16:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2025-02-06 06:16:11,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 06:16:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2025-02-06 06:16:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2025-02-06 06:16:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2025-02-06 06:16:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2025-02-06 06:16:11,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2025-02-06 06:16:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2025-02-06 06:16:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2025-02-06 06:16:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 06:16:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2025-02-06 06:16:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2025-02-06 06:16:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2025-02-06 06:16:11,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2025-02-06 06:16:11,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2025-02-06 06:16:11,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2025-02-06 06:16:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2025-02-06 06:16:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom [2025-02-06 06:16:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 06:16:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2025-02-06 06:16:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom [2025-02-06 06:16:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom [2025-02-06 06:16:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2025-02-06 06:16:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2025-02-06 06:16:11,926 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 06:16:11,929 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 06:16:11,956 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3726: havoc #t~ret426.base, #t~ret426.offset; [2025-02-06 06:16:11,990 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3817: havoc #t~nondet442; [2025-02-06 06:16:12,055 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2123: havoc ~res~0#1.base, ~res~0#1.offset; [2025-02-06 06:16:12,064 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3711: havoc #t~nondet422; [2025-02-06 06:16:12,067 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3737: havoc #t~nondet429; [2025-02-06 06:16:12,071 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3780: havoc #t~nondet436; [2025-02-06 06:16:12,078 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3741: havoc #t~nondet430; [2025-02-06 06:16:12,097 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3715: havoc __pci_enable_wake_#t~nondet423#1; [2025-02-06 06:16:12,100 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3762: havoc #t~nondet433; [2025-02-06 06:16:12,120 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3807: havoc #t~nondet441; [2025-02-06 06:16:12,125 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3723: havoc #t~nondet425; [2025-02-06 06:16:17,509 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3803: havoc pci_save_state_#t~nondet440#1; [2025-02-06 06:16:17,509 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3748: havoc ldv_pch_bin_attr_probe_2_#t~nondet431#1; [2025-02-06 06:16:17,509 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3752: havoc ldv_pch_bin_attr_release_2_#t~nondet432#1; [2025-02-06 06:16:17,509 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2761: call ULTIMATE.dealloc(store_pch_mac_~#mac~1#1.base, store_pch_mac_~#mac~1#1.offset);havoc store_pch_mac_~#mac~1#1.base, store_pch_mac_~#mac~1#1.offset;call ULTIMATE.dealloc(store_pch_mac_~#rom_size~3#1.base, store_pch_mac_~#rom_size~3#1.offset);havoc store_pch_mac_~#rom_size~3#1.base, store_pch_mac_~#rom_size~3#1.offset; [2025-02-06 06:16:17,509 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2974: call ULTIMATE.dealloc(pch_phub_suspend_~#state#1.base, pch_phub_suspend_~#state#1.offset);havoc pch_phub_suspend_~#state#1.base, pch_phub_suspend_~#state#1.offset; [2025-02-06 06:16:17,509 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3308-1: ldv_mutex_lock_interruptible_6_#res#1 := ldv_mutex_lock_interruptible_6_~ldv_func_res~1#1; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3773: havoc pci_choose_state_#t~nondet435#1; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2189: call ULTIMATE.dealloc(pch_phub_save_reg_conf_~#descriptor~0#1.base, pch_phub_save_reg_conf_~#descriptor~0#1.offset);havoc pch_phub_save_reg_conf_~#descriptor~0#1.base, pch_phub_save_reg_conf_~#descriptor~0#1.offset;call ULTIMATE.dealloc(pch_phub_save_reg_conf_~#descriptor___0~0#1.base, pch_phub_save_reg_conf_~#descriptor___0~0#1.offset);havoc pch_phub_save_reg_conf_~#descriptor___0~0#1.base, pch_phub_save_reg_conf_~#descriptor___0~0#1.offset; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2261: call ULTIMATE.dealloc(pch_phub_restore_reg_conf_~#descriptor~1#1.base, pch_phub_restore_reg_conf_~#descriptor~1#1.offset);havoc pch_phub_restore_reg_conf_~#descriptor~1#1.base, pch_phub_restore_reg_conf_~#descriptor~1#1.offset;call ULTIMATE.dealloc(pch_phub_restore_reg_conf_~#descriptor___0~1#1.base, pch_phub_restore_reg_conf_~#descriptor___0~1#1.offset);havoc pch_phub_restore_reg_conf_~#descriptor___0~1#1.base, pch_phub_restore_reg_conf_~#descriptor___0~1#1.offset; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3783: havoc pci_iomap_#t~ret437#1.base, pci_iomap_#t~ret437#1.offset; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2133: havoc __kmalloc_#t~ret64#1.base, __kmalloc_#t~ret64#1.offset; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3719: havoc __pci_register_driver_#t~nondet424#1; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2795: call ULTIMATE.dealloc(pch_phub_probe_~#descriptor~2#1.base, pch_phub_probe_~#descriptor~2#1.offset);havoc pch_phub_probe_~#descriptor~2#1.base, pch_phub_probe_~#descriptor~2#1.offset;call ULTIMATE.dealloc(pch_phub_probe_~#descriptor___0~2#1.base, pch_phub_probe_~#descriptor___0~2#1.offset);havoc pch_phub_probe_~#descriptor___0~2#1.base, pch_phub_probe_~#descriptor___0~2#1.offset;call ULTIMATE.dealloc(pch_phub_probe_~#descriptor___1~0#1.base, pch_phub_probe_~#descriptor___1~0#1.offset);havoc pch_phub_probe_~#descriptor___1~0#1.base, pch_phub_probe_~#descriptor___1~0#1.offset; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2600: call ULTIMATE.dealloc(pch_phub_bin_read_~#rom_signature~0#1.base, pch_phub_bin_read_~#rom_signature~0#1.offset);havoc pch_phub_bin_read_~#rom_signature~0#1.base, pch_phub_bin_read_~#rom_signature~0#1.offset;call ULTIMATE.dealloc(pch_phub_bin_read_~#rom_length~0#1.base, pch_phub_bin_read_~#rom_length~0#1.offset);havoc pch_phub_bin_read_~#rom_length~0#1.base, pch_phub_bin_read_~#rom_length~0#1.offset;call ULTIMATE.dealloc(pch_phub_bin_read_~#tmp~10#1.base, pch_phub_bin_read_~#tmp~10#1.offset);havoc pch_phub_bin_read_~#tmp~10#1.base, pch_phub_bin_read_~#tmp~10#1.offset;call ULTIMATE.dealloc(pch_phub_bin_read_~#rom_size~0#1.base, pch_phub_bin_read_~#rom_size~0#1.offset);havoc pch_phub_bin_read_~#rom_size~0#1.base, pch_phub_bin_read_~#rom_size~0#1.offset; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3796: havoc pci_request_regions_#t~nondet439#1; [2025-02-06 06:16:17,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3730: havoc dev_set_drvdata_#t~nondet427#1; [2025-02-06 06:16:17,511 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2740: call ULTIMATE.dealloc(show_pch_mac_~#mac~0#1.base, show_pch_mac_~#mac~0#1.offset);havoc show_pch_mac_~#mac~0#1.base, show_pch_mac_~#mac~0#1.offset;call ULTIMATE.dealloc(show_pch_mac_~#rom_size~2#1.base, show_pch_mac_~#rom_size~2#1.offset);havoc show_pch_mac_~#rom_size~2#1.base, show_pch_mac_~#rom_size~2#1.offset; [2025-02-06 06:16:17,511 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3336-1: ldv_mutex_lock_interruptible_9_#res#1 := ldv_mutex_lock_interruptible_9_~ldv_func_res~2#1; [2025-02-06 06:16:17,511 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3733: havoc dmi_get_system_info_#t~ret428#1.base, dmi_get_system_info_#t~ret428#1.offset; [2025-02-06 06:16:17,511 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2677: call ULTIMATE.dealloc(pch_phub_bin_write_~#rom_size~1#1.base, pch_phub_bin_write_~#rom_size~1#1.offset);havoc pch_phub_bin_write_~#rom_size~1#1.base, pch_phub_bin_write_~#rom_size~1#1.offset; [2025-02-06 06:16:17,533 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3821: havoc #t~nondet443; [2025-02-06 06:16:17,600 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3789: havoc #t~ret438.base, #t~ret438.offset; [2025-02-06 06:16:17,836 INFO L? ?]: Removed 845 outVars from TransFormulas that were not future-live. [2025-02-06 06:16:17,836 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 06:16:17,929 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 06:16:17,930 INFO L337 CfgBuilder]: Removed 1 assume(true) statements. [2025-02-06 06:16:17,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:16:17 BoogieIcfgContainer [2025-02-06 06:16:17,930 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 06:16:17,932 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 06:16:17,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 06:16:17,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 06:16:17,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:16:10" (1/3) ... [2025-02-06 06:16:17,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e8776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:16:17, skipping insertion in model container [2025-02-06 06:16:17,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:16:11" (2/3) ... [2025-02-06 06:16:17,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e8776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:16:17, skipping insertion in model container [2025-02-06 06:16:17,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:16:17" (3/3) ... [2025-02-06 06:16:17,940 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2025-02-06 06:16:17,952 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 06:16:17,953 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i that has 31 procedures, 851 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 06:16:18,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 06:16:18,062 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;@470823fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 06:16:18,063 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 06:16:18,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 855 states, 632 states have (on average 1.3465189873417722) internal successors, (851), 649 states have internal predecessors, (851), 187 states have call successors, (187), 30 states have call predecessors, (187), 30 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2025-02-06 06:16:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 06:16:18,079 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:16:18,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:16:18,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:16:18,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:16:18,087 INFO L85 PathProgramCache]: Analyzing trace with hash 198482113, now seen corresponding path program 1 times [2025-02-06 06:16:18,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:16:18,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246321368] [2025-02-06 06:16:18,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:16:18,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:16:19,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 06:16:19,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 06:16:19,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:16:19,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:16:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:16:20,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:16:20,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246321368] [2025-02-06 06:16:20,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246321368] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:16:20,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:16:20,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:16:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644371101] [2025-02-06 06:16:20,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:16:20,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:16:20,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:16:20,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:16:20,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:16:20,251 INFO L87 Difference]: Start difference. First operand has 855 states, 632 states have (on average 1.3465189873417722) internal successors, (851), 649 states have internal predecessors, (851), 187 states have call successors, (187), 30 states have call predecessors, (187), 30 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) 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) [2025-02-06 06:16:24,293 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 [] [2025-02-06 06:16:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:16:25,694 INFO L93 Difference]: Finished difference Result 2538 states and 3695 transitions. [2025-02-06 06:16:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:16:25,696 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 [2025-02-06 06:16:25,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:16:25,712 INFO L225 Difference]: With dead ends: 2538 [2025-02-06 06:16:25,712 INFO L226 Difference]: Without dead ends: 1675 [2025-02-06 06:16:25,719 INFO L434 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 [2025-02-06 06:16:25,721 INFO L435 NwaCegarLoop]: 1161 mSDtfsCounter, 1188 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2025-02-06 06:16:25,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 2308 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2025-02-06 06:16:25,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2025-02-06 06:16:25,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1671. [2025-02-06 06:16:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1243 states have (on average 1.335478680611424) internal successors, (1660), 1261 states have internal predecessors, (1660), 369 states have call successors, (369), 59 states have call predecessors, (369), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2025-02-06 06:16:25,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2393 transitions. [2025-02-06 06:16:25,828 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2393 transitions. Word has length 15 [2025-02-06 06:16:25,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:16:25,828 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 2393 transitions. [2025-02-06 06:16:25,829 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) [2025-02-06 06:16:25,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2393 transitions. [2025-02-06 06:16:25,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 06:16:25,831 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:16:25,831 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:16:25,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 06:16:25,831 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:16:25,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:16:25,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1879503823, now seen corresponding path program 1 times [2025-02-06 06:16:25,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:16:25,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650657532] [2025-02-06 06:16:25,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:16:25,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:16:26,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 06:16:26,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 06:16:26,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:16:26,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:16:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:16:27,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:16:27,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650657532] [2025-02-06 06:16:27,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650657532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:16:27,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:16:27,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:16:27,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98811166] [2025-02-06 06:16:27,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:16:27,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:16:27,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:16:27,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:16:27,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:16:27,226 INFO L87 Difference]: Start difference. First operand 1671 states and 2393 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) [2025-02-06 06:16:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:16:27,832 INFO L93 Difference]: Finished difference Result 1689 states and 2413 transitions. [2025-02-06 06:16:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:16:27,833 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 [2025-02-06 06:16:27,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:16:27,842 INFO L225 Difference]: With dead ends: 1689 [2025-02-06 06:16:27,842 INFO L226 Difference]: Without dead ends: 1680 [2025-02-06 06:16:27,843 INFO L434 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 [2025-02-06 06:16:27,844 INFO L435 NwaCegarLoop]: 1162 mSDtfsCounter, 1203 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 06:16:27,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 1172 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 06:16:27,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2025-02-06 06:16:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1671. [2025-02-06 06:16:27,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1243 states have (on average 1.33467417538214) internal successors, (1659), 1261 states have internal predecessors, (1659), 369 states have call successors, (369), 59 states have call predecessors, (369), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2025-02-06 06:16:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2392 transitions. [2025-02-06 06:16:27,911 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2392 transitions. Word has length 18 [2025-02-06 06:16:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:16:27,912 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 2392 transitions. [2025-02-06 06:16:27,912 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) [2025-02-06 06:16:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2392 transitions. [2025-02-06 06:16:27,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 06:16:27,916 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:16:27,916 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:16:27,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 06:16:27,916 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:16:27,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:16:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1850874672, now seen corresponding path program 1 times [2025-02-06 06:16:27,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:16:27,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228306833] [2025-02-06 06:16:27,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:16:27,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:16:29,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 06:16:29,144 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 06:16:29,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:16:29,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:16:29,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:16:29,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:16:29,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228306833] [2025-02-06 06:16:29,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228306833] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:16:29,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:16:29,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:16:29,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630671579] [2025-02-06 06:16:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:16:29,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:16:29,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:16:29,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:16:29,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:16:29,313 INFO L87 Difference]: Start difference. First operand 1671 states and 2392 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) [2025-02-06 06:16:33,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:16:33,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:16:33,962 INFO L93 Difference]: Finished difference Result 1673 states and 2393 transitions. [2025-02-06 06:16:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:16:33,962 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 [2025-02-06 06:16:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:16:33,970 INFO L225 Difference]: With dead ends: 1673 [2025-02-06 06:16:33,970 INFO L226 Difference]: Without dead ends: 1670 [2025-02-06 06:16:33,971 INFO L434 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 [2025-02-06 06:16:33,971 INFO L435 NwaCegarLoop]: 1150 mSDtfsCounter, 1191 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2025-02-06 06:16:33,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 1150 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2025-02-06 06:16:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2025-02-06 06:16:34,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2025-02-06 06:16:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1243 states have (on average 1.333869670152856) internal successors, (1658), 1260 states have internal predecessors, (1658), 368 states have call successors, (368), 59 states have call predecessors, (368), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2025-02-06 06:16:34,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2390 transitions. [2025-02-06 06:16:34,033 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2390 transitions. Word has length 18 [2025-02-06 06:16:34,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:16:34,033 INFO L471 AbstractCegarLoop]: Abstraction has 1670 states and 2390 transitions. [2025-02-06 06:16:34,033 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) [2025-02-06 06:16:34,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2390 transitions. [2025-02-06 06:16:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-06 06:16:34,034 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:16:34,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:16:34,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 06:16:34,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:16:34,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:16:34,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1543664600, now seen corresponding path program 1 times [2025-02-06 06:16:34,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:16:34,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115466199] [2025-02-06 06:16:34,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:16:34,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:16:35,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 06:16:35,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 06:16:35,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:16:35,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:16:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:16:35,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:16:35,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115466199] [2025-02-06 06:16:35,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115466199] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:16:35,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:16:35,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:16:35,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109132284] [2025-02-06 06:16:35,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:16:35,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:16:35,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:16:35,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:16:35,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:16:35,297 INFO L87 Difference]: Start difference. First operand 1670 states and 2390 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) [2025-02-06 06:16:39,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:16:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:16:39,977 INFO L93 Difference]: Finished difference Result 1672 states and 2391 transitions. [2025-02-06 06:16:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:16:39,978 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 [2025-02-06 06:16:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:16:39,989 INFO L225 Difference]: With dead ends: 1672 [2025-02-06 06:16:39,989 INFO L226 Difference]: Without dead ends: 1669 [2025-02-06 06:16:39,990 INFO L434 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 [2025-02-06 06:16:39,990 INFO L435 NwaCegarLoop]: 1148 mSDtfsCounter, 1188 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2025-02-06 06:16:39,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 1148 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2025-02-06 06:16:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2025-02-06 06:16:40,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1669. [2025-02-06 06:16:40,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1243 states have (on average 1.333065164923572) internal successors, (1657), 1259 states have internal predecessors, (1657), 367 states have call successors, (367), 59 states have call predecessors, (367), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2025-02-06 06:16:40,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2388 transitions. [2025-02-06 06:16:40,053 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2388 transitions. Word has length 19 [2025-02-06 06:16:40,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:16:40,053 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 2388 transitions. [2025-02-06 06:16:40,054 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) [2025-02-06 06:16:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2388 transitions. [2025-02-06 06:16:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-06 06:16:40,055 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:16:40,055 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:16:40,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 06:16:40,055 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:16:40,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:16:40,056 INFO L85 PathProgramCache]: Analyzing trace with hash -610087983, now seen corresponding path program 1 times [2025-02-06 06:16:40,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:16:40,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539356490] [2025-02-06 06:16:40,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:16:40,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:16:41,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 06:16:41,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 06:16:41,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:16:41,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:16:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:16:41,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:16:41,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539356490] [2025-02-06 06:16:41,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539356490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:16:41,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:16:41,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:16:41,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597648986] [2025-02-06 06:16:41,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:16:41,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:16:41,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:16:41,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:16:41,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:16:41,485 INFO L87 Difference]: Start difference. First operand 1669 states and 2388 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) [2025-02-06 06:16:45,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:16:47,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:16:47,113 INFO L93 Difference]: Finished difference Result 4967 states and 7126 transitions. [2025-02-06 06:16:47,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:16:47,114 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 [2025-02-06 06:16:47,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:16:47,129 INFO L225 Difference]: With dead ends: 4967 [2025-02-06 06:16:47,129 INFO L226 Difference]: Without dead ends: 3295 [2025-02-06 06:16:47,136 INFO L434 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 [2025-02-06 06:16:47,137 INFO L435 NwaCegarLoop]: 1228 mSDtfsCounter, 1182 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2025-02-06 06:16:47,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 2346 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2025-02-06 06:16:47,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2025-02-06 06:16:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 3282. [2025-02-06 06:16:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 2450 states have (on average 1.3346938775510204) internal successors, (3270), 2485 states have internal predecessors, (3270), 719 states have call successors, (719), 114 states have call predecessors, (719), 112 states have return successors, (720), 708 states have call predecessors, (720), 712 states have call successors, (720) [2025-02-06 06:16:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 4709 transitions. [2025-02-06 06:16:47,252 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 4709 transitions. Word has length 20 [2025-02-06 06:16:47,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:16:47,252 INFO L471 AbstractCegarLoop]: Abstraction has 3282 states and 4709 transitions. [2025-02-06 06:16:47,252 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) [2025-02-06 06:16:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 4709 transitions. [2025-02-06 06:16:47,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-06 06:16:47,256 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:16:47,256 INFO L218 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, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:16:47,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 06:16:47,256 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:16:47,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:16:47,257 INFO L85 PathProgramCache]: Analyzing trace with hash -439956376, now seen corresponding path program 1 times [2025-02-06 06:16:47,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:16:47,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304924467] [2025-02-06 06:16:47,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:16:47,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:16:48,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 06:16:48,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 06:16:48,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:16:48,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:16:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:16:48,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:16:48,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304924467] [2025-02-06 06:16:48,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304924467] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:16:48,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:16:48,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:16:48,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537891918] [2025-02-06 06:16:48,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:16:48,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:16:48,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:16:48,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:16:48,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:16:48,415 INFO L87 Difference]: Start difference. First operand 3282 states and 4709 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:16:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:16:49,799 INFO L93 Difference]: Finished difference Result 7288 states and 10453 transitions. [2025-02-06 06:16:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:16:49,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2025-02-06 06:16:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:16:49,818 INFO L225 Difference]: With dead ends: 7288 [2025-02-06 06:16:49,818 INFO L226 Difference]: Without dead ends: 4008 [2025-02-06 06:16:49,829 INFO L434 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 [2025-02-06 06:16:49,830 INFO L435 NwaCegarLoop]: 1162 mSDtfsCounter, 1032 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-02-06 06:16:49,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 2294 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-02-06 06:16:49,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2025-02-06 06:16:49,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 4008. [2025-02-06 06:16:49,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 2994 states have (on average 1.3333333333333333) internal successors, (3992), 3034 states have internal predecessors, (3992), 876 states have call successors, (876), 139 states have call predecessors, (876), 137 states have return successors, (877), 865 states have call predecessors, (877), 869 states have call successors, (877) [2025-02-06 06:16:49,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 5745 transitions. [2025-02-06 06:16:49,962 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 5745 transitions. Word has length 49 [2025-02-06 06:16:49,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:16:49,962 INFO L471 AbstractCegarLoop]: Abstraction has 4008 states and 5745 transitions. [2025-02-06 06:16:49,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:16:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 5745 transitions. [2025-02-06 06:16:49,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-02-06 06:16:49,968 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:16:49,969 INFO L218 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, 1, 1, 1, 1, 1, 1] [2025-02-06 06:16:49,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 06:16:49,969 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:16:49,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:16:49,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1990362766, now seen corresponding path program 1 times [2025-02-06 06:16:49,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:16:49,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999237826] [2025-02-06 06:16:49,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:16:49,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:16:50,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-06 06:16:51,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-06 06:16:51,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:16:51,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:16:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 06:16:51,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:16:51,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999237826] [2025-02-06 06:16:51,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999237826] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:16:51,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:16:51,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:16:51,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801341427] [2025-02-06 06:16:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:16:51,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:16:51,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:16:51,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:16:51,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:16:51,249 INFO L87 Difference]: Start difference. First operand 4008 states and 5745 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:16:55,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:16:57,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:16:57,299 INFO L93 Difference]: Finished difference Result 10236 states and 14681 transitions. [2025-02-06 06:16:57,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:16:57,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2025-02-06 06:16:57,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:16:57,328 INFO L225 Difference]: With dead ends: 10236 [2025-02-06 06:16:57,328 INFO L226 Difference]: Without dead ends: 6957 [2025-02-06 06:16:57,339 INFO L434 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 [2025-02-06 06:16:57,340 INFO L435 NwaCegarLoop]: 2135 mSDtfsCounter, 1055 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2025-02-06 06:16:57,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 3268 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2025-02-06 06:16:57,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6957 states. [2025-02-06 06:16:57,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6957 to 6948. [2025-02-06 06:16:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6948 states, 5206 states have (on average 1.333461390703035) internal successors, (6942), 5266 states have internal predecessors, (6942), 1504 states have call successors, (1504), 239 states have call predecessors, (1504), 237 states have return successors, (1505), 1493 states have call predecessors, (1505), 1497 states have call successors, (1505) [2025-02-06 06:16:57,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6948 states to 6948 states and 9951 transitions. [2025-02-06 06:16:57,608 INFO L78 Accepts]: Start accepts. Automaton has 6948 states and 9951 transitions. Word has length 60 [2025-02-06 06:16:57,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:16:57,609 INFO L471 AbstractCegarLoop]: Abstraction has 6948 states and 9951 transitions. [2025-02-06 06:16:57,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:16:57,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6948 states and 9951 transitions. [2025-02-06 06:16:57,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-02-06 06:16:57,614 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:16:57,615 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:16:57,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 06:16:57,615 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:16:57,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:16:57,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1228558094, now seen corresponding path program 1 times [2025-02-06 06:16:57,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:16:57,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822843728] [2025-02-06 06:16:57,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:16:57,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:16:58,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-02-06 06:16:58,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-02-06 06:16:58,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:16:58,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:16:59,049 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-02-06 06:16:59,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:16:59,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822843728] [2025-02-06 06:16:59,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822843728] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:16:59,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:16:59,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 06:16:59,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252637938] [2025-02-06 06:16:59,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:16:59,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 06:16:59,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:16:59,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 06:16:59,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 06:16:59,050 INFO L87 Difference]: Start difference. First operand 6948 states and 9951 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-06 06:17:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:17:00,524 INFO L93 Difference]: Finished difference Result 13187 states and 18891 transitions. [2025-02-06 06:17:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 06:17:00,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 72 [2025-02-06 06:17:00,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:17:00,589 INFO L225 Difference]: With dead ends: 13187 [2025-02-06 06:17:00,589 INFO L226 Difference]: Without dead ends: 6968 [2025-02-06 06:17:00,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 06:17:00,614 INFO L435 NwaCegarLoop]: 1133 mSDtfsCounter, 1196 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 06:17:00,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 2249 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 06:17:00,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6968 states. [2025-02-06 06:17:00,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6968 to 6948. [2025-02-06 06:17:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6948 states, 5206 states have (on average 1.3326930464848252) internal successors, (6938), 5266 states have internal predecessors, (6938), 1504 states have call successors, (1504), 239 states have call predecessors, (1504), 237 states have return successors, (1505), 1493 states have call predecessors, (1505), 1497 states have call successors, (1505) [2025-02-06 06:17:00,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6948 states to 6948 states and 9947 transitions. [2025-02-06 06:17:00,849 INFO L78 Accepts]: Start accepts. Automaton has 6948 states and 9947 transitions. Word has length 72 [2025-02-06 06:17:00,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:17:00,850 INFO L471 AbstractCegarLoop]: Abstraction has 6948 states and 9947 transitions. [2025-02-06 06:17:00,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-06 06:17:00,851 INFO L276 IsEmpty]: Start isEmpty. Operand 6948 states and 9947 transitions. [2025-02-06 06:17:00,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-06 06:17:00,856 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:17:00,856 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:17:00,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 06:17:00,856 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:17:00,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:17:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash 729024754, now seen corresponding path program 1 times [2025-02-06 06:17:00,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:17:00,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984060023] [2025-02-06 06:17:00,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:17:00,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:17:01,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-06 06:17:01,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-06 06:17:01,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:17:01,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:17:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-02-06 06:17:02,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:17:02,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984060023] [2025-02-06 06:17:02,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984060023] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:17:02,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:17:02,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 06:17:02,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80346980] [2025-02-06 06:17:02,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:17:02,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 06:17:02,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:17:02,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 06:17:02,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:17:02,156 INFO L87 Difference]: Start difference. First operand 6948 states and 9947 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:17:06,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 06:17:08,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:17:08,202 INFO L93 Difference]: Finished difference Result 13169 states and 18856 transitions. [2025-02-06 06:17:08,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 06:17:08,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 73 [2025-02-06 06:17:08,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:17:08,270 INFO L225 Difference]: With dead ends: 13169 [2025-02-06 06:17:08,270 INFO L226 Difference]: Without dead ends: 6950 [2025-02-06 06:17:08,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 06:17:08,290 INFO L435 NwaCegarLoop]: 2175 mSDtfsCounter, 1162 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 3305 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2025-02-06 06:17:08,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 3305 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2025-02-06 06:17:08,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6950 states. [2025-02-06 06:17:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6950 to 6935. [2025-02-06 06:17:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 5198 states have (on average 1.3324355521354367) internal successors, (6926), 5259 states have internal predecessors, (6926), 1500 states have call successors, (1500), 237 states have call predecessors, (1500), 236 states have return successors, (1495), 1489 states have call predecessors, (1495), 1491 states have call successors, (1495) [2025-02-06 06:17:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 9921 transitions. [2025-02-06 06:17:08,507 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 9921 transitions. Word has length 73 [2025-02-06 06:17:08,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:17:08,508 INFO L471 AbstractCegarLoop]: Abstraction has 6935 states and 9921 transitions. [2025-02-06 06:17:08,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:17:08,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 9921 transitions. [2025-02-06 06:17:08,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-02-06 06:17:08,512 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:17:08,513 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:17:08,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 06:17:08,513 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:17:08,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:17:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash -115447117, now seen corresponding path program 1 times [2025-02-06 06:17:08,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:17:08,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653792201] [2025-02-06 06:17:08,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:17:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:17:09,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-02-06 06:17:09,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-02-06 06:17:09,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:17:09,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:17:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-02-06 06:17:10,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:17:10,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653792201] [2025-02-06 06:17:10,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653792201] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:17:10,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:17:10,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 06:17:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488862959] [2025-02-06 06:17:10,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:17:10,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 06:17:10,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:17:10,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 06:17:10,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:17:10,222 INFO L87 Difference]: Start difference. First operand 6935 states and 9921 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:17:13,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:17:13,288 INFO L93 Difference]: Finished difference Result 7056 states and 10061 transitions. [2025-02-06 06:17:13,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 06:17:13,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 73 [2025-02-06 06:17:13,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:17:13,314 INFO L225 Difference]: With dead ends: 7056 [2025-02-06 06:17:13,315 INFO L226 Difference]: Without dead ends: 6903 [2025-02-06 06:17:13,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:17:13,320 INFO L435 NwaCegarLoop]: 1151 mSDtfsCounter, 0 mSDsluCounter, 4586 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5737 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-02-06 06:17:13,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5737 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-02-06 06:17:13,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6903 states. [2025-02-06 06:17:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6903 to 6903. [2025-02-06 06:17:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6903 states, 5176 states have (on average 1.3315301391035548) internal successors, (6892), 5232 states have internal predecessors, (6892), 1490 states have call successors, (1490), 237 states have call predecessors, (1490), 236 states have return successors, (1487), 1483 states have call predecessors, (1487), 1483 states have call successors, (1487) [2025-02-06 06:17:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6903 states to 6903 states and 9869 transitions. [2025-02-06 06:17:13,521 INFO L78 Accepts]: Start accepts. Automaton has 6903 states and 9869 transitions. Word has length 73 [2025-02-06 06:17:13,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:17:13,522 INFO L471 AbstractCegarLoop]: Abstraction has 6903 states and 9869 transitions. [2025-02-06 06:17:13,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-06 06:17:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 6903 states and 9869 transitions. [2025-02-06 06:17:13,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-06 06:17:13,528 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:17:13,528 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:17:13,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 06:17:13,528 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:17:13,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:17:13,529 INFO L85 PathProgramCache]: Analyzing trace with hash -38788214, now seen corresponding path program 1 times [2025-02-06 06:17:13,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:17:13,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832135923] [2025-02-06 06:17:13,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:17:13,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:17:14,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 06:17:14,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 06:17:14,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:17:14,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:17:15,132 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 06:17:15,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:17:15,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832135923] [2025-02-06 06:17:15,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832135923] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:17:15,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:17:15,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 06:17:15,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513711105] [2025-02-06 06:17:15,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:17:15,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 06:17:15,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:17:15,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 06:17:15,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:17:15,134 INFO L87 Difference]: Start difference. First operand 6903 states and 9869 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-06 06:17:18,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:17:18,081 INFO L93 Difference]: Finished difference Result 6951 states and 9912 transitions. [2025-02-06 06:17:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 06:17:18,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 79 [2025-02-06 06:17:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:17:18,107 INFO L225 Difference]: With dead ends: 6951 [2025-02-06 06:17:18,108 INFO L226 Difference]: Without dead ends: 6848 [2025-02-06 06:17:18,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:17:18,115 INFO L435 NwaCegarLoop]: 1149 mSDtfsCounter, 0 mSDsluCounter, 4581 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5730 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-02-06 06:17:18,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5730 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-02-06 06:17:18,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2025-02-06 06:17:18,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 6848. [2025-02-06 06:17:18,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6848 states, 5138 states have (on average 1.330868042039704) internal successors, (6838), 5189 states have internal predecessors, (6838), 1473 states have call successors, (1473), 236 states have call predecessors, (1473), 236 states have return successors, (1473), 1471 states have call predecessors, (1473), 1469 states have call successors, (1473) [2025-02-06 06:17:18,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 9784 transitions. [2025-02-06 06:17:18,320 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 9784 transitions. Word has length 79 [2025-02-06 06:17:18,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:17:18,320 INFO L471 AbstractCegarLoop]: Abstraction has 6848 states and 9784 transitions. [2025-02-06 06:17:18,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-02-06 06:17:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 9784 transitions. [2025-02-06 06:17:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-06 06:17:18,327 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:17:18,327 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:17:18,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 06:17:18,327 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:17:18,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:17:18,327 INFO L85 PathProgramCache]: Analyzing trace with hash 28016933, now seen corresponding path program 1 times [2025-02-06 06:17:18,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:17:18,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819040362] [2025-02-06 06:17:18,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:17:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:17:19,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-06 06:17:19,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 06:17:19,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:17:19,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:17:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-02-06 06:17:19,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:17:19,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819040362] [2025-02-06 06:17:19,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819040362] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:17:19,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:17:19,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 06:17:19,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196638488] [2025-02-06 06:17:19,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:17:19,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 06:17:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:17:19,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 06:17:19,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:17:19,969 INFO L87 Difference]: Start difference. First operand 6848 states and 9784 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 06:17:23,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:17:23,055 INFO L93 Difference]: Finished difference Result 9820 states and 14036 transitions. [2025-02-06 06:17:23,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 06:17:23,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2025-02-06 06:17:23,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:17:23,093 INFO L225 Difference]: With dead ends: 9820 [2025-02-06 06:17:23,093 INFO L226 Difference]: Without dead ends: 6846 [2025-02-06 06:17:23,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:17:23,104 INFO L435 NwaCegarLoop]: 1143 mSDtfsCounter, 0 mSDsluCounter, 4562 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5705 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-02-06 06:17:23,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5705 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-02-06 06:17:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6846 states. [2025-02-06 06:17:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6846 to 6846. [2025-02-06 06:17:23,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6846 states, 5136 states have (on average 1.330607476635514) internal successors, (6834), 5187 states have internal predecessors, (6834), 1473 states have call successors, (1473), 236 states have call predecessors, (1473), 236 states have return successors, (1473), 1471 states have call predecessors, (1473), 1469 states have call successors, (1473) [2025-02-06 06:17:23,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6846 states to 6846 states and 9780 transitions. [2025-02-06 06:17:23,306 INFO L78 Accepts]: Start accepts. Automaton has 6846 states and 9780 transitions. Word has length 75 [2025-02-06 06:17:23,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:17:23,306 INFO L471 AbstractCegarLoop]: Abstraction has 6846 states and 9780 transitions. [2025-02-06 06:17:23,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 06:17:23,307 INFO L276 IsEmpty]: Start isEmpty. Operand 6846 states and 9780 transitions. [2025-02-06 06:17:23,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-02-06 06:17:23,313 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 06:17:23,313 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:17:23,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 06:17:23,314 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 06:17:23,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 06:17:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash 2057425368, now seen corresponding path program 1 times [2025-02-06 06:17:23,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 06:17:23,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796666935] [2025-02-06 06:17:23,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 06:17:23,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 06:17:24,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-02-06 06:17:24,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-02-06 06:17:24,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 06:17:24,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 06:17:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-06 06:17:24,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 06:17:24,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796666935] [2025-02-06 06:17:24,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796666935] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 06:17:24,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 06:17:24,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 06:17:24,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264584785] [2025-02-06 06:17:24,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 06:17:24,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 06:17:24,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 06:17:24,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 06:17:24,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:17:24,951 INFO L87 Difference]: Start difference. First operand 6846 states and 9780 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 06:17:27,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 06:17:27,923 INFO L93 Difference]: Finished difference Result 6972 states and 9926 transitions. [2025-02-06 06:17:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 06:17:27,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 77 [2025-02-06 06:17:27,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 06:17:27,929 INFO L225 Difference]: With dead ends: 6972 [2025-02-06 06:17:27,929 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 06:17:27,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 06:17:27,957 INFO L435 NwaCegarLoop]: 1131 mSDtfsCounter, 0 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5648 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-02-06 06:17:27,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5648 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-02-06 06:17:27,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 06:17:27,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 06:17:27,961 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) [2025-02-06 06:17:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 06:17:27,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2025-02-06 06:17:27,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 06:17:27,968 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 06:17:27,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 06:17:27,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 06:17:27,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 06:17:27,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-06 06:17:27,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 06:17:27,978 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 06:17:27,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.