./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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 09:49:44,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 09:49:44,122 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 09:49:44,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 09:49:44,126 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 09:49:44,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 09:49:44,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 09:49:44,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 09:49:44,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 09:49:44,159 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 09:49:44,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 09:49:44,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 09:49:44,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 09:49:44,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 09:49:44,162 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 09:49:44,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 09:49:44,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 09:49:44,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 09:49:44,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 09:49:44,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 09:49:44,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 09:49:44,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 09:49:44,165 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 09:49:44,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 09:49:44,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 09:49:44,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 09:49:44,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 09:49:44,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 09:49:44,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 09:49:44,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:49:44,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 09:49:44,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 09:49:44,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 09:49:44,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 09:49:44,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 09:49:44,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 09:49:44,168 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 09:49:44,168 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 09:49:44,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 09:49:44,169 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 [2024-11-12 09:49:44,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 09:49:44,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 09:49:44,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 09:49:44,473 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 09:49:44,473 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 09:49:44,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2024-11-12 09:49:45,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 09:49:46,232 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 09:49:46,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2024-11-12 09:49:46,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/756469d74/63184725ccf747a4b7cd452cc74f1f80/FLAG6603165be [2024-11-12 09:49:46,281 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/756469d74/63184725ccf747a4b7cd452cc74f1f80 [2024-11-12 09:49:46,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 09:49:46,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 09:49:46,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 09:49:46,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 09:49:46,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 09:49:46,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:49:46" (1/1) ... [2024-11-12 09:49:46,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3963f275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:46, skipping insertion in model container [2024-11-12 09:49:46,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:49:46" (1/1) ... [2024-11-12 09:49:46,380 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 09:49:47,194 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2024-11-12 09:49:47,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:49:47,276 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 09:49:47,441 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2024-11-12 09:49:47,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:49:47,513 INFO L204 MainTranslator]: Completed translation [2024-11-12 09:49:47,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47 WrapperNode [2024-11-12 09:49:47,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 09:49:47,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 09:49:47,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 09:49:47,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 09:49:47,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:47,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:47,786 INFO L138 Inliner]: procedures = 129, calls = 755, calls flagged for inlining = 53, calls inlined = 47, statements flattened = 2571 [2024-11-12 09:49:47,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 09:49:47,788 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 09:49:47,788 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 09:49:47,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 09:49:47,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:47,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:47,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:47,976 INFO L175 MemorySlicer]: Split 360 memory accesses to 17 slices as follows [2, 19, 42, 1, 2, 16, 7, 6, 1, 24, 1, 2, 49, 121, 8, 51, 8]. 34 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 6]. The 228 writes are split as follows [0, 19, 42, 0, 0, 16, 6, 0, 1, 24, 1, 1, 42, 30, 3, 43, 0]. [2024-11-12 09:49:47,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:47,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:48,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:48,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:48,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:48,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:48,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 09:49:48,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 09:49:48,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 09:49:48,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 09:49:48,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (1/1) ... [2024-11-12 09:49:48,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:49:48,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 09:49:48,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 09:49:48,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 09:49:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-12 09:49:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-12 09:49:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 09:49:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 09:49:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 09:49:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 09:49:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 09:49:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 09:49:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-12 09:49:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-12 09:49:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-12 09:49:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-12 09:49:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-12 09:49:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-12 09:49:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-12 09:49:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-12 09:49:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-12 09:49:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-12 09:49:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-12 09:49:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_remove [2024-11-12 09:49:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_remove [2024-11-12 09:49:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 09:49:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 09:49:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 09:49:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 09:49:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-12 09:49:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-12 09:49:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-12 09:49:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-12 09:49:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-12 09:49:48,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-12 09:49:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-12 09:49:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 09:49:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 09:49:48,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 09:49:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 09:49:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 09:49:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 09:49:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-12 09:49:48,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-12 09:49:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-12 09:49:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-12 09:49:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-12 09:49:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-12 09:49:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-12 09:49:48,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-12 09:49:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-12 09:49:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-12 09:49:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-12 09:49:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2024-11-12 09:49:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2024-11-12 09:49:48,240 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_modify_write_reg [2024-11-12 09:49:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_modify_write_reg [2024-11-12 09:49:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pch_phub_mutex [2024-11-12 09:49:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pch_phub_mutex [2024-11-12 09:49:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-12 09:49:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-12 09:49:48,241 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-12 09:49:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-12 09:49:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 09:49:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 09:49:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 09:49:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 09:49:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 09:49:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 09:49:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-12 09:49:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-12 09:49:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-12 09:49:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-12 09:49:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-12 09:49:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-12 09:49:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-12 09:49:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-12 09:49:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-12 09:49:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-12 09:49:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-12 09:49:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-12 09:49:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-12 09:49:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-11-12 09:49:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-11-12 09:49:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 09:49:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2024-11-12 09:49:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2024-11-12 09:49:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 09:49:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2024-11-12 09:49:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2024-11-12 09:49:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2024-11-12 09:49:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2024-11-12 09:49:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 09:49:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 09:49:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 09:49:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 09:49:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 09:49:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 09:49:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-12 09:49:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-12 09:49:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-12 09:49:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-12 09:49:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-12 09:49:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-12 09:49:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-12 09:49:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-12 09:49:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-12 09:49:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-12 09:49:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-12 09:49:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 09:49:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 09:49:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 09:49:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 09:49:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 09:49:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 09:49:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 09:49:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-12 09:49:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-12 09:49:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-12 09:49:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-12 09:49:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-12 09:49:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-12 09:49:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-12 09:49:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-12 09:49:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-12 09:49:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-12 09:49:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-12 09:49:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-12 09:49:48,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-12 09:49:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-12 09:49:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-12 09:49:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-11-12 09:49:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-11-12 09:49:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2024-11-12 09:49:48,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2024-11-12 09:49:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-12 09:49:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-12 09:49:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 09:49:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2024-11-12 09:49:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2024-11-12 09:49:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-12 09:49:48,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-12 09:49:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-11-12 09:49:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-11-12 09:49:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-12 09:49:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-12 09:49:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom [2024-11-12 09:49:48,255 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom [2024-11-12 09:49:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 09:49:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 09:49:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 09:49:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-12 09:49:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-12 09:49:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-12 09:49:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-12 09:49:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-12 09:49:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-12 09:49:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 09:49:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 09:49:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2024-11-12 09:49:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2024-11-12 09:49:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom [2024-11-12 09:49:48,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom [2024-11-12 09:49:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2024-11-12 09:49:48,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2024-11-12 09:49:48,683 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 09:49:48,688 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 09:50:01,795 INFO L? ?]: Removed 849 outVars from TransFormulas that were not future-live. [2024-11-12 09:50:01,795 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 09:50:01,824 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 09:50:01,825 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 09:50:01,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:50:01 BoogieIcfgContainer [2024-11-12 09:50:01,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 09:50:01,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 09:50:01,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 09:50:01,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 09:50:01,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 09:49:46" (1/3) ... [2024-11-12 09:50:01,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6652b428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:50:01, skipping insertion in model container [2024-11-12 09:50:01,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:49:47" (2/3) ... [2024-11-12 09:50:01,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6652b428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:50:01, skipping insertion in model container [2024-11-12 09:50:01,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:50:01" (3/3) ... [2024-11-12 09:50:01,839 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2024-11-12 09:50:01,856 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 09:50:01,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 09:50:01,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 09:50:01,966 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;@2b55ba7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 09:50:01,966 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 09:50:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 852 states, 633 states have (on average 1.3459715639810426) internal successors, (852), 646 states have internal predecessors, (852), 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) [2024-11-12 09:50:01,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-12 09:50:01,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:50:01,986 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 09:50:01,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:50:01,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:50:01,993 INFO L85 PathProgramCache]: Analyzing trace with hash 572309931, now seen corresponding path program 1 times [2024-11-12 09:50:02,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:50:02,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766265956] [2024-11-12 09:50:02,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:50:02,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:50:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:04,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 09:50:04,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:50:04,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766265956] [2024-11-12 09:50:04,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766265956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:50:04,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:50:04,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 09:50:04,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935950648] [2024-11-12 09:50:04,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:50:04,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 09:50:04,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:50:04,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 09:50:04,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 09:50:04,588 INFO L87 Difference]: Start difference. First operand has 852 states, 633 states have (on average 1.3459715639810426) internal successors, (852), 646 states have internal predecessors, (852), 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) [2024-11-12 09:50:08,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:50:09,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:50:09,019 INFO L93 Difference]: Finished difference Result 2530 states and 3698 transitions. [2024-11-12 09:50:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 09:50:09,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-12 09:50:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:50:09,054 INFO L225 Difference]: With dead ends: 2530 [2024-11-12 09:50:09,055 INFO L226 Difference]: Without dead ends: 1677 [2024-11-12 09:50:09,069 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 [2024-11-12 09:50:09,072 INFO L435 NwaCegarLoop]: 1217 mSDtfsCounter, 1189 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-12 09:50:09,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 2420 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-12 09:50:09,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-11-12 09:50:09,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1673. [2024-11-12 09:50:09,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1245 states have (on average 1.3405622489959839) internal successors, (1669), 1263 states have internal predecessors, (1669), 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) [2024-11-12 09:50:09,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2402 transitions. [2024-11-12 09:50:09,276 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2402 transitions. Word has length 15 [2024-11-12 09:50:09,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:50:09,277 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 2402 transitions. [2024-11-12 09:50:09,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:09,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2402 transitions. [2024-11-12 09:50:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 09:50:09,280 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:50:09,281 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 09:50:09,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 09:50:09,281 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:50:09,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:50:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash 41048853, now seen corresponding path program 1 times [2024-11-12 09:50:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:50:09,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637283039] [2024-11-12 09:50:09,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:50:09,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:50:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 09:50:10,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:50:10,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637283039] [2024-11-12 09:50:10,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637283039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:50:10,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:50:10,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 09:50:10,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468528773] [2024-11-12 09:50:10,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:50:10,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 09:50:10,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:50:10,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 09:50:10,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 09:50:10,925 INFO L87 Difference]: Start difference. First operand 1673 states and 2402 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:11,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:50:11,074 INFO L93 Difference]: Finished difference Result 1691 states and 2422 transitions. [2024-11-12 09:50:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 09:50:11,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-12 09:50:11,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:50:11,094 INFO L225 Difference]: With dead ends: 1691 [2024-11-12 09:50:11,094 INFO L226 Difference]: Without dead ends: 1682 [2024-11-12 09:50:11,098 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 [2024-11-12 09:50:11,099 INFO L435 NwaCegarLoop]: 1222 mSDtfsCounter, 1208 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 09:50:11,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 1232 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 09:50:11,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-12 09:50:11,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1673. [2024-11-12 09:50:11,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1245 states have (on average 1.3397590361445784) internal successors, (1668), 1263 states have internal predecessors, (1668), 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) [2024-11-12 09:50:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2401 transitions. [2024-11-12 09:50:11,196 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2401 transitions. Word has length 18 [2024-11-12 09:50:11,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:50:11,197 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 2401 transitions. [2024-11-12 09:50:11,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:11,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2401 transitions. [2024-11-12 09:50:11,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 09:50:11,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:50:11,200 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 09:50:11,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 09:50:11,201 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:50:11,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:50:11,202 INFO L85 PathProgramCache]: Analyzing trace with hash 98307155, now seen corresponding path program 1 times [2024-11-12 09:50:11,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:50:11,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393099861] [2024-11-12 09:50:11,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:50:11,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:50:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 09:50:12,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:50:12,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393099861] [2024-11-12 09:50:12,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393099861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:50:12,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:50:12,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 09:50:12,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467773231] [2024-11-12 09:50:12,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:50:12,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 09:50:12,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:50:12,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 09:50:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 09:50:12,880 INFO L87 Difference]: Start difference. First operand 1673 states and 2401 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:16,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:50:17,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:50:17,086 INFO L93 Difference]: Finished difference Result 1675 states and 2402 transitions. [2024-11-12 09:50:17,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 09:50:17,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-12 09:50:17,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:50:17,098 INFO L225 Difference]: With dead ends: 1675 [2024-11-12 09:50:17,098 INFO L226 Difference]: Without dead ends: 1672 [2024-11-12 09:50:17,099 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 [2024-11-12 09:50:17,102 INFO L435 NwaCegarLoop]: 1210 mSDtfsCounter, 1196 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-12 09:50:17,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1210 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-12 09:50:17,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2024-11-12 09:50:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2024-11-12 09:50:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1245 states have (on average 1.3389558232931726) internal successors, (1667), 1262 states have internal predecessors, (1667), 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) [2024-11-12 09:50:17,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2399 transitions. [2024-11-12 09:50:17,204 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2399 transitions. Word has length 18 [2024-11-12 09:50:17,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:50:17,204 INFO L471 AbstractCegarLoop]: Abstraction has 1672 states and 2399 transitions. [2024-11-12 09:50:17,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:17,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2399 transitions. [2024-11-12 09:50:17,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-12 09:50:17,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:50:17,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 09:50:17,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 09:50:17,210 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:50:17,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:50:17,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1247811767, now seen corresponding path program 1 times [2024-11-12 09:50:17,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:50:17,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879090602] [2024-11-12 09:50:17,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:50:17,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:50:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:18,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 09:50:18,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:50:18,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879090602] [2024-11-12 09:50:18,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879090602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:50:18,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:50:18,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 09:50:18,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777415146] [2024-11-12 09:50:18,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:50:18,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 09:50:18,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:50:18,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 09:50:18,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 09:50:18,609 INFO L87 Difference]: Start difference. First operand 1672 states and 2399 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:22,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:50:22,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:50:22,947 INFO L93 Difference]: Finished difference Result 1674 states and 2400 transitions. [2024-11-12 09:50:22,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 09:50:22,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-12 09:50:22,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:50:22,960 INFO L225 Difference]: With dead ends: 1674 [2024-11-12 09:50:22,960 INFO L226 Difference]: Without dead ends: 1671 [2024-11-12 09:50:22,962 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 [2024-11-12 09:50:22,965 INFO L435 NwaCegarLoop]: 1208 mSDtfsCounter, 1193 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-12 09:50:22,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-12 09:50:22,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2024-11-12 09:50:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2024-11-12 09:50:23,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1245 states have (on average 1.3381526104417671) internal successors, (1666), 1261 states have internal predecessors, (1666), 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) [2024-11-12 09:50:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2397 transitions. [2024-11-12 09:50:23,059 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2397 transitions. Word has length 19 [2024-11-12 09:50:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:50:23,060 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 2397 transitions. [2024-11-12 09:50:23,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2397 transitions. [2024-11-12 09:50:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-12 09:50:23,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:50:23,062 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] [2024-11-12 09:50:23,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 09:50:23,063 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:50:23,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:50:23,063 INFO L85 PathProgramCache]: Analyzing trace with hash -27820522, now seen corresponding path program 1 times [2024-11-12 09:50:23,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:50:23,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025225538] [2024-11-12 09:50:23,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:50:23,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:50:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 09:50:24,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:50:24,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025225538] [2024-11-12 09:50:24,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025225538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:50:24,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:50:24,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 09:50:24,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684779226] [2024-11-12 09:50:24,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:50:24,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 09:50:24,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:50:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 09:50:24,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 09:50:24,632 INFO L87 Difference]: Start difference. First operand 1671 states and 2397 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:28,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:50:29,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:50:29,252 INFO L93 Difference]: Finished difference Result 4973 states and 7153 transitions. [2024-11-12 09:50:29,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 09:50:29,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-12 09:50:29,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:50:29,281 INFO L225 Difference]: With dead ends: 4973 [2024-11-12 09:50:29,282 INFO L226 Difference]: Without dead ends: 3299 [2024-11-12 09:50:29,294 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 [2024-11-12 09:50:29,297 INFO L435 NwaCegarLoop]: 1289 mSDtfsCounter, 1187 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-12 09:50:29,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 2467 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-12 09:50:29,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-11-12 09:50:29,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3286. [2024-11-12 09:50:29,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 2454 states have (on average 1.3398533007334963) internal successors, (3288), 2489 states have internal predecessors, (3288), 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) [2024-11-12 09:50:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4727 transitions. [2024-11-12 09:50:29,486 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4727 transitions. Word has length 20 [2024-11-12 09:50:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:50:29,487 INFO L471 AbstractCegarLoop]: Abstraction has 3286 states and 4727 transitions. [2024-11-12 09:50:29,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 09:50:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4727 transitions. [2024-11-12 09:50:29,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-12 09:50:29,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:50:29,492 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] [2024-11-12 09:50:29,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 09:50:29,493 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:50:29,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:50:29,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1030728849, now seen corresponding path program 1 times [2024-11-12 09:50:29,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:50:29,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396110482] [2024-11-12 09:50:29,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:50:29,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:50:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:31,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-12 09:50:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:31,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 09:50:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:31,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 09:50:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:31,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-12 09:50:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:31,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-12 09:50:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 09:50:31,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:50:31,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396110482] [2024-11-12 09:50:31,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396110482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:50:31,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:50:31,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 09:50:31,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060347542] [2024-11-12 09:50:31,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:50:31,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 09:50:31,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:50:31,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 09:50:31,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:50:31,166 INFO L87 Difference]: Start difference. First operand 3286 states and 4727 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-12 09:50:35,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:50:39,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:50:52,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:50:52,971 INFO L93 Difference]: Finished difference Result 9642 states and 13911 transitions. [2024-11-12 09:50:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 09:50:52,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 4 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 [2024-11-12 09:50:52,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:50:53,019 INFO L225 Difference]: With dead ends: 9642 [2024-11-12 09:50:53,019 INFO L226 Difference]: Without dead ends: 6359 [2024-11-12 09:50:53,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-12 09:50:53,044 INFO L435 NwaCegarLoop]: 1057 mSDtfsCounter, 1357 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 819 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2024-11-12 09:50:53,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 3334 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 925 Invalid, 2 Unknown, 0 Unchecked, 21.0s Time] [2024-11-12 09:50:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6359 states. [2024-11-12 09:50:53,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6359 to 6190. [2024-11-12 09:50:53,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 4630 states have (on average 1.3373650107991362) internal successors, (6192), 4685 states have internal predecessors, (6192), 1347 states have call successors, (1347), 214 states have call predecessors, (1347), 212 states have return successors, (1348), 1336 states have call predecessors, (1348), 1340 states have call successors, (1348) [2024-11-12 09:50:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 8887 transitions. [2024-11-12 09:50:53,413 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 8887 transitions. Word has length 49 [2024-11-12 09:50:53,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:50:53,414 INFO L471 AbstractCegarLoop]: Abstraction has 6190 states and 8887 transitions. [2024-11-12 09:50:53,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-12 09:50:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 8887 transitions. [2024-11-12 09:50:53,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-12 09:50:53,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:50:53,421 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] [2024-11-12 09:50:53,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 09:50:53,422 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:50:53,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:50:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1499931713, now seen corresponding path program 1 times [2024-11-12 09:50:53,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:50:53,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730958350] [2024-11-12 09:50:53,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:50:53,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:50:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:54,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-12 09:50:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:54,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 09:50:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:54,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 09:50:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:55,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 09:50:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:55,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 09:50:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:50:55,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 09:50:55,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:50:55,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730958350] [2024-11-12 09:50:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730958350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:50:55,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:50:55,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 09:50:55,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75721843] [2024-11-12 09:50:55,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:50:55,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 09:50:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:50:55,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 09:50:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:50:55,042 INFO L87 Difference]: Start difference. First operand 6190 states and 8887 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-12 09:50:59,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:51:03,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []