./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 11:10:55,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 11:10:55,170 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 11:10:55,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 11:10:55,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 11:10:55,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 11:10:55,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 11:10:55,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 11:10:55,228 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 11:10:55,229 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 11:10:55,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 11:10:55,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 11:10:55,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 11:10:55,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 11:10:55,233 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 11:10:55,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 11:10:55,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 11:10:55,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 11:10:55,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 11:10:55,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 11:10:55,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 11:10:55,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 11:10:55,239 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 11:10:55,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 11:10:55,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 11:10:55,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 11:10:55,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 11:10:55,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 11:10:55,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 11:10:55,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:10:55,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 11:10:55,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 11:10:55,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 11:10:55,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 11:10:55,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 11:10:55,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 11:10:55,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 11:10:55,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 11:10:55,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 11:10:55,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2024-11-20 11:10:55,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 11:10:55,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 11:10:55,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 11:10:55,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 11:10:55,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 11:10:55,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-20 11:10:56,936 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 11:10:57,340 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 11:10:57,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-20 11:10:57,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0bac230f/f8392b4d8bdf4130b29ec8a3650148bd/FLAG8957182f0 [2024-11-20 11:10:57,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0bac230f/f8392b4d8bdf4130b29ec8a3650148bd [2024-11-20 11:10:57,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 11:10:57,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 11:10:57,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 11:10:57,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 11:10:57,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 11:10:57,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:57" (1/1) ... [2024-11-20 11:10:57,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d89aef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:57, skipping insertion in model container [2024-11-20 11:10:57,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:10:57" (1/1) ... [2024-11-20 11:10:57,515 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 11:10:58,252 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-20 11:10:58,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:10:58,630 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 11:10:58,803 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i[104745,104758] [2024-11-20 11:10:58,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:10:58,965 INFO L204 MainTranslator]: Completed translation [2024-11-20 11:10:58,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58 WrapperNode [2024-11-20 11:10:58,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 11:10:58,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 11:10:58,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 11:10:58,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 11:10:58,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,130 INFO L138 Inliner]: procedures = 113, calls = 1240, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 2689 [2024-11-20 11:10:59,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 11:10:59,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 11:10:59,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 11:10:59,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 11:10:59,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,337 INFO L175 MemorySlicer]: Split 666 memory accesses to 14 slices as follows [2, 5, 22, 44, 175, 83, 5, 7, 7, 2, 125, 175, 6, 8]. 26 percent of accesses are in the largest equivalence class. The 213 initializations are split as follows [2, 5, 0, 0, 5, 63, 5, 0, 0, 0, 125, 0, 0, 8]. The 322 writes are split as follows [0, 0, 4, 44, 97, 20, 0, 0, 0, 1, 0, 150, 6, 0]. [2024-11-20 11:10:59,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 11:10:59,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 11:10:59,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 11:10:59,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 11:10:59,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (1/1) ... [2024-11-20 11:10:59,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:10:59,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 11:10:59,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 11:10:59,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 11:10:59,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2024-11-20 11:10:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2024-11-20 11:10:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2024-11-20 11:10:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2024-11-20 11:10:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2024-11-20 11:10:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2024-11-20 11:10:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2024-11-20 11:10:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2024-11-20 11:10:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2024-11-20 11:10:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2024-11-20 11:10:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2024-11-20 11:10:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2024-11-20 11:10:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2024-11-20 11:10:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2024-11-20 11:10:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2024-11-20 11:10:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2024-11-20 11:10:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2024-11-20 11:10:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2024-11-20 11:10:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2024-11-20 11:10:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2024-11-20 11:10:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2024-11-20 11:10:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2024-11-20 11:10:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2024-11-20 11:10:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2024-11-20 11:10:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2024-11-20 11:10:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2024-11-20 11:10:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2024-11-20 11:10:59,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2024-11-20 11:10:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 11:10:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 11:10:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 11:10:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 11:10:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 11:10:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 11:10:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 11:10:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 11:10:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 11:10:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 11:10:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-20 11:10:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-20 11:10:59,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-20 11:10:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-20 11:10:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-20 11:10:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-20 11:10:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-20 11:10:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-20 11:10:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-20 11:10:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-20 11:10:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 11:10:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 11:10:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 11:10:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 11:10:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 11:10:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-20 11:10:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-20 11:10:59,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-20 11:10:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-20 11:10:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-20 11:10:59,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 11:10:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-20 11:10:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-20 11:10:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-20 11:10:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 11:10:59,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 11:10:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-20 11:10:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-20 11:10:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2024-11-20 11:10:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2024-11-20 11:10:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2024-11-20 11:10:59,600 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2024-11-20 11:10:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 11:10:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-20 11:10:59,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-20 11:10:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 11:10:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 11:10:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 11:10:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 11:10:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 11:10:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 11:10:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 11:10:59,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-20 11:10:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-20 11:10:59,603 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-20 11:10:59,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-20 11:10:59,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-20 11:10:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-20 11:10:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 11:10:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2024-11-20 11:10:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2024-11-20 11:10:59,605 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-20 11:10:59,605 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-20 11:10:59,606 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-20 11:10:59,606 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-20 11:10:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-20 11:10:59,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-20 11:10:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 11:10:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 11:10:59,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-20 11:10:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-20 11:10:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 11:10:59,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 11:11:00,070 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 11:11:00,073 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 11:11:00,167 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-20 11:11:00,233 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-20 11:11:09,233 INFO L? ?]: Removed 894 outVars from TransFormulas that were not future-live. [2024-11-20 11:11:09,233 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 11:11:09,283 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 11:11:09,287 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-20 11:11:09,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:11:09 BoogieIcfgContainer [2024-11-20 11:11:09,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 11:11:09,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 11:11:09,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 11:11:09,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 11:11:09,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:10:57" (1/3) ... [2024-11-20 11:11:09,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfe9376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:11:09, skipping insertion in model container [2024-11-20 11:11:09,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:10:58" (2/3) ... [2024-11-20 11:11:09,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfe9376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:11:09, skipping insertion in model container [2024-11-20 11:11:09,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:11:09" (3/3) ... [2024-11-20 11:11:09,299 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-20 11:11:09,316 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 11:11:09,317 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 11:11:09,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 11:11:09,420 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;@5aaf560c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 11:11:09,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 11:11:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 523 states, 383 states have (on average 1.3759791122715406) internal successors, (527), 409 states have internal predecessors, (527), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-20 11:11:09,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-20 11:11:09,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:09,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:09,438 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:09,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:09,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1757756952, now seen corresponding path program 1 times [2024-11-20 11:11:09,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:09,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633601090] [2024-11-20 11:11:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:09,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:12,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 11:11:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:12,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633601090] [2024-11-20 11:11:12,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633601090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:12,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:12,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:11:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837488875] [2024-11-20 11:11:12,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:12,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:11:12,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:12,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:11:12,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:11:12,097 INFO L87 Difference]: Start difference. First operand has 523 states, 383 states have (on average 1.3759791122715406) internal successors, (527), 409 states have internal predecessors, (527), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 11:11:16,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:20,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:11:26,126 INFO L93 Difference]: Finished difference Result 1564 states and 2343 transitions. [2024-11-20 11:11:26,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:11:26,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-20 11:11:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:11:26,157 INFO L225 Difference]: With dead ends: 1564 [2024-11-20 11:11:26,157 INFO L226 Difference]: Without dead ends: 1028 [2024-11-20 11:11:26,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:11:26,168 INFO L432 NwaCegarLoop]: 1237 mSDtfsCounter, 724 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 150 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-20 11:11:26,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2515 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 629 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2024-11-20 11:11:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-20 11:11:26,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 994. [2024-11-20 11:11:26,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 734 states have (on average 1.3433242506811989) internal successors, (986), 770 states have internal predecessors, (986), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-20 11:11:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1427 transitions. [2024-11-20 11:11:26,348 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1427 transitions. Word has length 22 [2024-11-20 11:11:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:11:26,349 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1427 transitions. [2024-11-20 11:11:26,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 11:11:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1427 transitions. [2024-11-20 11:11:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-20 11:11:26,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:26,352 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:26,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 11:11:26,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:26,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:26,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1292697066, now seen corresponding path program 1 times [2024-11-20 11:11:26,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:26,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445426181] [2024-11-20 11:11:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:26,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:28,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:28,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 11:11:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 11:11:28,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:28,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445426181] [2024-11-20 11:11:28,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445426181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:28,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:28,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:11:28,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358848440] [2024-11-20 11:11:28,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:28,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:11:28,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:28,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:11:28,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:11:28,434 INFO L87 Difference]: Start difference. First operand 994 states and 1427 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:11:32,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:35,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:11:35,090 INFO L93 Difference]: Finished difference Result 1054 states and 1505 transitions. [2024-11-20 11:11:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:11:35,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-20 11:11:35,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:11:35,099 INFO L225 Difference]: With dead ends: 1054 [2024-11-20 11:11:35,100 INFO L226 Difference]: Without dead ends: 1041 [2024-11-20 11:11:35,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:11:35,102 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 708 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-20 11:11:35,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1080 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 254 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-11-20 11:11:35,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-20 11:11:35,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 994. [2024-11-20 11:11:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 734 states have (on average 1.3419618528610355) internal successors, (985), 770 states have internal predecessors, (985), 223 states have call successors, (223), 37 states have call predecessors, (223), 36 states have return successors, (218), 194 states have call predecessors, (218), 218 states have call successors, (218) [2024-11-20 11:11:35,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1426 transitions. [2024-11-20 11:11:35,161 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1426 transitions. Word has length 32 [2024-11-20 11:11:35,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:11:35,162 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1426 transitions. [2024-11-20 11:11:35,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:11:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1426 transitions. [2024-11-20 11:11:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-20 11:11:35,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:35,164 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:35,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 11:11:35,164 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:35,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1349955368, now seen corresponding path program 1 times [2024-11-20 11:11:35,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:35,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496741646] [2024-11-20 11:11:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:37,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:37,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 11:11:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:37,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 11:11:37,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:37,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496741646] [2024-11-20 11:11:37,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496741646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:37,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:37,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:11:37,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249347308] [2024-11-20 11:11:37,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:37,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:11:37,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:37,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:11:37,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:11:37,286 INFO L87 Difference]: Start difference. First operand 994 states and 1426 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:11:41,335 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 [] [2024-11-20 11:11:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:11:46,376 INFO L93 Difference]: Finished difference Result 3023 states and 4351 transitions. [2024-11-20 11:11:46,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:11:46,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-20 11:11:46,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:11:46,390 INFO L225 Difference]: With dead ends: 3023 [2024-11-20 11:11:46,390 INFO L226 Difference]: Without dead ends: 2041 [2024-11-20 11:11:46,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:11:46,396 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 758 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 248 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1581 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-20 11:11:46,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 1581 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2024-11-20 11:11:46,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2024-11-20 11:11:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 1973. [2024-11-20 11:11:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1460 states have (on average 1.3390410958904109) internal successors, (1955), 1528 states have internal predecessors, (1955), 439 states have call successors, (439), 72 states have call predecessors, (439), 73 states have return successors, (442), 386 states have call predecessors, (442), 434 states have call successors, (442) [2024-11-20 11:11:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2836 transitions. [2024-11-20 11:11:46,504 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2836 transitions. Word has length 32 [2024-11-20 11:11:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:11:46,504 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 2836 transitions. [2024-11-20 11:11:46,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:11:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2836 transitions. [2024-11-20 11:11:46,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-20 11:11:46,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:46,508 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:46,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 11:11:46,508 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:46,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:46,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1101314634, now seen corresponding path program 1 times [2024-11-20 11:11:46,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:46,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195309386] [2024-11-20 11:11:46,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:46,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:48,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:48,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 11:11:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 11:11:48,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:48,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195309386] [2024-11-20 11:11:48,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195309386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:48,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:48,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:11:48,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170477199] [2024-11-20 11:11:48,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:48,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:11:48,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:48,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:11:48,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:11:48,423 INFO L87 Difference]: Start difference. First operand 1973 states and 2836 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:11:52,457 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 [] [2024-11-20 11:11:58,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:11:58,299 INFO L93 Difference]: Finished difference Result 6004 states and 8633 transitions. [2024-11-20 11:11:58,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:11:58,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-20 11:11:58,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:11:58,324 INFO L225 Difference]: With dead ends: 6004 [2024-11-20 11:11:58,325 INFO L226 Difference]: Without dead ends: 4043 [2024-11-20 11:11:58,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:11:58,335 INFO L432 NwaCegarLoop]: 1184 mSDtfsCounter, 728 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-20 11:11:58,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2418 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2024-11-20 11:11:58,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2024-11-20 11:11:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 3920. [2024-11-20 11:11:58,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 2903 states have (on average 1.3368928694454012) internal successors, (3881), 3035 states have internal predecessors, (3881), 871 states have call successors, (871), 142 states have call predecessors, (871), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-20 11:11:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5634 transitions. [2024-11-20 11:11:58,522 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5634 transitions. Word has length 33 [2024-11-20 11:11:58,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:11:58,522 INFO L471 AbstractCegarLoop]: Abstraction has 3920 states and 5634 transitions. [2024-11-20 11:11:58,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:11:58,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5634 transitions. [2024-11-20 11:11:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-20 11:11:58,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:58,524 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:58,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 11:11:58,525 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:58,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:58,525 INFO L85 PathProgramCache]: Analyzing trace with hash 218731499, now seen corresponding path program 1 times [2024-11-20 11:11:58,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:58,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649836919] [2024-11-20 11:11:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:58,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:59,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:59,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 11:11:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 11:11:59,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:59,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649836919] [2024-11-20 11:11:59,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649836919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:59,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:59,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:11:59,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920351237] [2024-11-20 11:11:59,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:59,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:11:59,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:59,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:11:59,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:11:59,970 INFO L87 Difference]: Start difference. First operand 3920 states and 5634 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:12:04,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:12:09,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:12:09,508 INFO L93 Difference]: Finished difference Result 4041 states and 5802 transitions. [2024-11-20 11:12:09,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:12:09,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-20 11:12:09,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:12:09,532 INFO L225 Difference]: With dead ends: 4041 [2024-11-20 11:12:09,532 INFO L226 Difference]: Without dead ends: 4038 [2024-11-20 11:12:09,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:12:09,536 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 725 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 146 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-20 11:12:09,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 2421 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 602 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2024-11-20 11:12:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2024-11-20 11:12:09,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 3921. [2024-11-20 11:12:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 2904 states have (on average 1.3367768595041323) internal successors, (3882), 3036 states have internal predecessors, (3882), 871 states have call successors, (871), 142 states have call predecessors, (871), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-20 11:12:09,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 5635 transitions. [2024-11-20 11:12:09,739 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 5635 transitions. Word has length 34 [2024-11-20 11:12:09,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:12:09,739 INFO L471 AbstractCegarLoop]: Abstraction has 3921 states and 5635 transitions. [2024-11-20 11:12:09,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:12:09,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 5635 transitions. [2024-11-20 11:12:09,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-20 11:12:09,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:12:09,741 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:12:09,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 11:12:09,741 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:12:09,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:12:09,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1809506471, now seen corresponding path program 1 times [2024-11-20 11:12:09,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:12:09,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599022034] [2024-11-20 11:12:09,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:12:09,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:12:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:12:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 11:12:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 11:12:11,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:12:11,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599022034] [2024-11-20 11:12:11,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599022034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:12:11,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:12:11,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:12:11,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633602557] [2024-11-20 11:12:11,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:12:11,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:12:11,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:12:11,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:12:11,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:12:11,324 INFO L87 Difference]: Start difference. First operand 3921 states and 5635 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 11:12:15,360 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 [] [2024-11-20 11:12:18,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:12:18,227 INFO L93 Difference]: Finished difference Result 4037 states and 5798 transitions. [2024-11-20 11:12:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 11:12:18,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-11-20 11:12:18,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:12:18,250 INFO L225 Difference]: With dead ends: 4037 [2024-11-20 11:12:18,250 INFO L226 Difference]: Without dead ends: 4034 [2024-11-20 11:12:18,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:12:18,253 INFO L432 NwaCegarLoop]: 648 mSDtfsCounter, 687 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 128 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-20 11:12:18,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1037 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-20 11:12:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states.