./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../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 803cd42f 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 ../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-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 15:16:40,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 15:16:40,367 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 15:16:40,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 15:16:40,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 15:16:40,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 15:16:40,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 15:16:40,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 15:16:40,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 15:16:40,413 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 15:16:40,414 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 15:16:40,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 15:16:40,416 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 15:16:40,416 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 15:16:40,418 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 15:16:40,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 15:16:40,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 15:16:40,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 15:16:40,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 15:16:40,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 15:16:40,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 15:16:40,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 15:16:40,423 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 15:16:40,423 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 15:16:40,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 15:16:40,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 15:16:40,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 15:16:40,424 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 15:16:40,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 15:16:40,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:16:40,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 15:16:40,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 15:16:40,426 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 15:16:40,426 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 15:16:40,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 15:16:40,427 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 15:16:40,427 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 15:16:40,427 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 15:16:40,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 15:16:40,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2024-11-22 15:16:40,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 15:16:40,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 15:16:40,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 15:16:40,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 15:16:40,767 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 15:16:40,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../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 [2024-11-22 15:16:42,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 15:16:42,764 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 15:16:42,765 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 [2024-11-22 15:16:42,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d222ca164/5123d7eb36bf41b88de60e651801ec03/FLAG8ba390380 [2024-11-22 15:16:42,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d222ca164/5123d7eb36bf41b88de60e651801ec03 [2024-11-22 15:16:42,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 15:16:42,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 15:16:42,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 15:16:42,815 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 15:16:42,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 15:16:42,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:16:42" (1/1) ... [2024-11-22 15:16:42,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70edb32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:42, skipping insertion in model container [2024-11-22 15:16:42,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:16:42" (1/1) ... [2024-11-22 15:16:42,912 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 15:16:43,757 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] [2024-11-22 15:16:44,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:16:44,203 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 15:16:44,386 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] [2024-11-22 15:16:44,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:16:44,670 INFO L204 MainTranslator]: Completed translation [2024-11-22 15:16:44,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44 WrapperNode [2024-11-22 15:16:44,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 15:16:44,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 15:16:44,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 15:16:44,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 15:16:44,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:44,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:44,863 INFO L138 Inliner]: procedures = 113, calls = 1240, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 2689 [2024-11-22 15:16:44,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 15:16:44,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 15:16:44,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 15:16:44,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 15:16:44,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:44,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:44,899 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:45,080 INFO L175 MemorySlicer]: Split 666 memory accesses to 14 slices as follows [2, 7, 7, 5, 44, 83, 175, 5, 175, 125, 6, 2, 22, 8]. 26 percent of accesses are in the largest equivalence class. The 213 initializations are split as follows [2, 0, 0, 5, 0, 63, 0, 5, 5, 125, 0, 0, 0, 8]. The 322 writes are split as follows [0, 0, 0, 0, 44, 20, 150, 0, 97, 0, 6, 1, 4, 0]. [2024-11-22 15:16:45,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:45,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:45,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:45,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:45,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:45,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:45,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 15:16:45,220 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 15:16:45,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 15:16:45,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 15:16:45,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (1/1) ... [2024-11-22 15:16:45,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:16:45,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:16:45,272 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) [2024-11-22 15:16:45,280 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 [2024-11-22 15:16:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2024-11-22 15:16:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2024-11-22 15:16:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2024-11-22 15:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2024-11-22 15:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2024-11-22 15:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2024-11-22 15:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2024-11-22 15:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2024-11-22 15:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2024-11-22 15:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2024-11-22 15:16:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2024-11-22 15:16:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2024-11-22 15:16:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2024-11-22 15:16:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2024-11-22 15:16:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2024-11-22 15:16:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2024-11-22 15:16:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2024-11-22 15:16:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2024-11-22 15:16:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2024-11-22 15:16:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2024-11-22 15:16:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2024-11-22 15:16:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2024-11-22 15:16:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2024-11-22 15:16:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2024-11-22 15:16:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2024-11-22 15:16:45,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2024-11-22 15:16:45,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2024-11-22 15:16:45,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2024-11-22 15:16:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 15:16:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 15:16:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-22 15:16:45,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-22 15:16:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-22 15:16:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-22 15:16:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 15:16:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 15:16:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 15:16:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 15:16:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 15:16:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 15:16:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 15:16:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-22 15:16:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-22 15:16:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-22 15:16:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-22 15:16:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-22 15:16:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-22 15:16:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-22 15:16:45,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-22 15:16:45,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 15:16:45,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-22 15:16:45,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-22 15:16:45,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-22 15:16:45,333 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-22 15:16:45,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 15:16:45,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 15:16:45,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 15:16:45,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 15:16:45,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 15:16:45,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 15:16:45,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 15:16:45,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 15:16:45,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 15:16:45,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-22 15:16:45,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-22 15:16:45,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-22 15:16:45,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-22 15:16:45,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-22 15:16:45,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-22 15:16:45,336 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-22 15:16:45,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-22 15:16:45,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-22 15:16:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-22 15:16:45,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 15:16:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 15:16:45,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 15:16:45,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-22 15:16:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-22 15:16:45,337 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2024-11-22 15:16:45,337 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2024-11-22 15:16:45,338 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2024-11-22 15:16:45,338 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2024-11-22 15:16:45,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 15:16:45,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-22 15:16:45,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-22 15:16:45,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 15:16:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 15:16:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 15:16:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 15:16:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 15:16:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 15:16:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 15:16:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-22 15:16:45,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-22 15:16:45,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-22 15:16:45,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-22 15:16:45,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-22 15:16:45,341 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-22 15:16:45,341 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 15:16:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2024-11-22 15:16:45,342 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2024-11-22 15:16:45,342 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-22 15:16:45,343 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-22 15:16:45,343 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-22 15:16:45,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 15:16:45,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 15:16:45,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 15:16:45,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 15:16:45,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-22 15:16:45,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-22 15:16:45,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 15:16:45,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 15:16:45,854 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 15:16:45,857 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 15:16:46,019 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-22 15:16:46,122 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-22 15:16:55,020 INFO L? ?]: Removed 894 outVars from TransFormulas that were not future-live. [2024-11-22 15:16:55,020 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 15:16:55,051 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 15:16:55,051 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-22 15:16:55,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:16:55 BoogieIcfgContainer [2024-11-22 15:16:55,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 15:16:55,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 15:16:55,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 15:16:55,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 15:16:55,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:16:42" (1/3) ... [2024-11-22 15:16:55,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d05eed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:16:55, skipping insertion in model container [2024-11-22 15:16:55,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:16:44" (2/3) ... [2024-11-22 15:16:55,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d05eed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:16:55, skipping insertion in model container [2024-11-22 15:16:55,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:16:55" (3/3) ... [2024-11-22 15:16:55,060 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-22 15:16:55,076 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 15:16:55,077 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 15:16:55,168 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 15:16:55,175 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;@4a287967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 15:16:55,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 15:16:55,184 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) [2024-11-22 15:16:55,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-22 15:16:55,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:16:55,195 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] [2024-11-22 15:16:55,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:16:55,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:16:55,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1757756952, now seen corresponding path program 1 times [2024-11-22 15:16:55,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:16:55,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825125594] [2024-11-22 15:16:55,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:16:55,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:16:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:16:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:16:57,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:16:57,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825125594] [2024-11-22 15:16:57,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825125594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:16:57,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:16:57,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:16:57,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040368601] [2024-11-22 15:16:57,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:16:57,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:16:57,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:16:57,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:16:57,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:16:57,842 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 3 states, 3 states have (on average 6.333333333333333) 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) [2024-11-22 15:17:01,925 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 [] [2024-11-22 15:17:02,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:02,206 INFO L93 Difference]: Finished difference Result 1530 states and 2297 transitions. [2024-11-22 15:17:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:02,209 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), 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 [2024-11-22 15:17:02,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:02,238 INFO L225 Difference]: With dead ends: 1530 [2024-11-22 15:17:02,239 INFO L226 Difference]: Without dead ends: 994 [2024-11-22 15:17:02,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:02,255 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 707 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1483 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 [2024-11-22 15:17:02,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1483 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-22 15:17:02,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-22 15:17:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 994. [2024-11-22 15:17:02,388 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) [2024-11-22 15:17:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1427 transitions. [2024-11-22 15:17:02,405 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1427 transitions. Word has length 22 [2024-11-22 15:17:02,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:02,406 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1427 transitions. [2024-11-22 15:17:02,406 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), 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) [2024-11-22 15:17:02,406 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1427 transitions. [2024-11-22 15:17:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 15:17:02,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:02,409 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] [2024-11-22 15:17:02,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 15:17:02,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:02,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1292697066, now seen corresponding path program 1 times [2024-11-22 15:17:02,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:02,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631504190] [2024-11-22 15:17:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:02,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:17:04,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:04,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631504190] [2024-11-22 15:17:04,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631504190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:04,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:04,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:04,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023423448] [2024-11-22 15:17:04,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:04,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:04,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:04,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:04,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:04,124 INFO L87 Difference]: Start difference. First operand 994 states and 1427 transitions. Second operand has 3 states, 3 states have (on average 8.0) 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) [2024-11-22 15:17:04,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:04,263 INFO L93 Difference]: Finished difference Result 1020 states and 1459 transitions. [2024-11-22 15:17:04,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:04,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) 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 [2024-11-22 15:17:04,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:04,274 INFO L225 Difference]: With dead ends: 1020 [2024-11-22 15:17:04,274 INFO L226 Difference]: Without dead ends: 1007 [2024-11-22 15:17:04,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:04,277 INFO L432 NwaCegarLoop]: 747 mSDtfsCounter, 727 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 763 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 [2024-11-22 15:17:04,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 763 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:04,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-11-22 15:17:04,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 994. [2024-11-22 15:17:04,343 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) [2024-11-22 15:17:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1426 transitions. [2024-11-22 15:17:04,355 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1426 transitions. Word has length 32 [2024-11-22 15:17:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:04,356 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1426 transitions. [2024-11-22 15:17:04,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) 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) [2024-11-22 15:17:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1426 transitions. [2024-11-22 15:17:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-22 15:17:04,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:04,359 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] [2024-11-22 15:17:04,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 15:17:04,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:04,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:04,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1349955368, now seen corresponding path program 1 times [2024-11-22 15:17:04,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:04,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420040715] [2024-11-22 15:17:04,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:04,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:17:06,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:06,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420040715] [2024-11-22 15:17:06,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420040715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:06,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:06,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:06,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880224344] [2024-11-22 15:17:06,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:06,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:06,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:06,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:06,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:06,571 INFO L87 Difference]: Start difference. First operand 994 states and 1426 transitions. Second operand has 3 states, 3 states have (on average 8.0) 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) [2024-11-22 15:17:06,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:06,788 INFO L93 Difference]: Finished difference Result 2957 states and 4261 transitions. [2024-11-22 15:17:06,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:06,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) 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 [2024-11-22 15:17:06,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:06,802 INFO L225 Difference]: With dead ends: 2957 [2024-11-22 15:17:06,802 INFO L226 Difference]: Without dead ends: 1975 [2024-11-22 15:17:06,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:06,807 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 709 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:06,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1451 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:06,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-11-22 15:17:06,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1965. [2024-11-22 15:17:06,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1454 states have (on average 1.3404401650618982) internal successors, (1949), 1522 states have internal predecessors, (1949), 439 states have call successors, (439), 72 states have call predecessors, (439), 71 states have return successors, (440), 386 states have call predecessors, (440), 434 states have call successors, (440) [2024-11-22 15:17:06,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2828 transitions. [2024-11-22 15:17:06,938 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2828 transitions. Word has length 32 [2024-11-22 15:17:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:06,939 INFO L471 AbstractCegarLoop]: Abstraction has 1965 states and 2828 transitions. [2024-11-22 15:17:06,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) 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) [2024-11-22 15:17:06,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2828 transitions. [2024-11-22 15:17:06,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 15:17:06,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:06,945 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] [2024-11-22 15:17:06,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 15:17:06,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:06,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:06,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1101314634, now seen corresponding path program 1 times [2024-11-22 15:17:06,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:06,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353544366] [2024-11-22 15:17:06,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:06,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:17:08,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:08,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353544366] [2024-11-22 15:17:08,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353544366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:08,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:08,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:08,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543245617] [2024-11-22 15:17:08,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:08,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:08,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:08,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:08,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:08,873 INFO L87 Difference]: Start difference. First operand 1965 states and 2828 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) 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) [2024-11-22 15:17:09,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:09,130 INFO L93 Difference]: Finished difference Result 5866 states and 8447 transitions. [2024-11-22 15:17:09,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:09,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) 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 [2024-11-22 15:17:09,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:09,153 INFO L225 Difference]: With dead ends: 5866 [2024-11-22 15:17:09,153 INFO L226 Difference]: Without dead ends: 3913 [2024-11-22 15:17:09,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:09,166 INFO L432 NwaCegarLoop]: 1294 mSDtfsCounter, 704 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:09,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 2012 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:09,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2024-11-22 15:17:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3904. [2024-11-22 15:17:09,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 2891 states have (on average 1.338291248702871) internal successors, (3869), 3023 states have internal predecessors, (3869), 871 states have call successors, (871), 142 states have call predecessors, (871), 141 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-22 15:17:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 5618 transitions. [2024-11-22 15:17:09,365 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 5618 transitions. Word has length 33 [2024-11-22 15:17:09,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:09,365 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 5618 transitions. [2024-11-22 15:17:09,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) 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) [2024-11-22 15:17:09,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 5618 transitions. [2024-11-22 15:17:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-22 15:17:09,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:09,369 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] [2024-11-22 15:17:09,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 15:17:09,369 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:09,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash 218731499, now seen corresponding path program 1 times [2024-11-22 15:17:09,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:09,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333480158] [2024-11-22 15:17:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:09,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:17:10,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:10,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333480158] [2024-11-22 15:17:10,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333480158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:10,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:10,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:10,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207818104] [2024-11-22 15:17:10,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:10,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:10,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:10,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:10,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:10,889 INFO L87 Difference]: Start difference. First operand 3904 states and 5618 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) 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) [2024-11-22 15:17:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:11,047 INFO L93 Difference]: Finished difference Result 3911 states and 5624 transitions. [2024-11-22 15:17:11,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:11,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) 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 [2024-11-22 15:17:11,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:11,070 INFO L225 Difference]: With dead ends: 3911 [2024-11-22 15:17:11,071 INFO L226 Difference]: Without dead ends: 3908 [2024-11-22 15:17:11,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:11,075 INFO L432 NwaCegarLoop]: 1295 mSDtfsCounter, 701 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:11,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 2012 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:11,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2024-11-22 15:17:11,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3905. [2024-11-22 15:17:11,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 2892 states have (on average 1.338174273858921) internal successors, (3870), 3024 states have internal predecessors, (3870), 871 states have call successors, (871), 142 states have call predecessors, (871), 141 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-22 15:17:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 5619 transitions. [2024-11-22 15:17:11,264 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 5619 transitions. Word has length 34 [2024-11-22 15:17:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:11,266 INFO L471 AbstractCegarLoop]: Abstraction has 3905 states and 5619 transitions. [2024-11-22 15:17:11,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) 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) [2024-11-22 15:17:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 5619 transitions. [2024-11-22 15:17:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 15:17:11,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:11,271 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] [2024-11-22 15:17:11,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 15:17:11,272 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:11,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1809506471, now seen corresponding path program 1 times [2024-11-22 15:17:11,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:11,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820545792] [2024-11-22 15:17:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:11,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:12,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:17:12,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:12,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820545792] [2024-11-22 15:17:12,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820545792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:12,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:12,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:12,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276339342] [2024-11-22 15:17:12,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:12,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:12,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:12,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:12,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:12,465 INFO L87 Difference]: Start difference. First operand 3905 states and 5619 transitions. Second operand has 3 states, 3 states have (on average 9.0) 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) [2024-11-22 15:17:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:12,581 INFO L93 Difference]: Finished difference Result 3907 states and 5620 transitions. [2024-11-22 15:17:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:12,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) 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 [2024-11-22 15:17:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:12,604 INFO L225 Difference]: With dead ends: 3907 [2024-11-22 15:17:12,604 INFO L226 Difference]: Without dead ends: 3904 [2024-11-22 15:17:12,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:12,609 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 706 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:12,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 729 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:12,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2024-11-22 15:17:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3904. [2024-11-22 15:17:12,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 2892 states have (on average 1.3378284923928077) internal successors, (3869), 3023 states have internal predecessors, (3869), 870 states have call successors, (870), 142 states have call predecessors, (870), 141 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-22 15:17:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 5617 transitions. [2024-11-22 15:17:12,877 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 5617 transitions. Word has length 35 [2024-11-22 15:17:12,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:12,877 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 5617 transitions. [2024-11-22 15:17:12,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) 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) [2024-11-22 15:17:12,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 5617 transitions. [2024-11-22 15:17:12,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 15:17:12,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:12,878 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, 1] [2024-11-22 15:17:12,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 15:17:12,879 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:12,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:12,880 INFO L85 PathProgramCache]: Analyzing trace with hash -260369234, now seen corresponding path program 1 times [2024-11-22 15:17:12,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:12,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073596918] [2024-11-22 15:17:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:12,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:14,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:17:14,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:14,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073596918] [2024-11-22 15:17:14,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073596918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:14,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:14,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:14,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875646377] [2024-11-22 15:17:14,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:14,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:14,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:14,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:14,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:14,214 INFO L87 Difference]: Start difference. First operand 3904 states and 5617 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-22 15:17:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:14,324 INFO L93 Difference]: Finished difference Result 3906 states and 5618 transitions. [2024-11-22 15:17:14,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:14,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 36 [2024-11-22 15:17:14,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:14,347 INFO L225 Difference]: With dead ends: 3906 [2024-11-22 15:17:14,347 INFO L226 Difference]: Without dead ends: 3894 [2024-11-22 15:17:14,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:14,352 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 703 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:14,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:17:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2024-11-22 15:17:14,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3894. [2024-11-22 15:17:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 2883 states have (on average 1.3374956642386404) internal successors, (3856), 3013 states have internal predecessors, (3856), 869 states have call successors, (869), 142 states have call predecessors, (869), 141 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-22 15:17:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5603 transitions. [2024-11-22 15:17:14,593 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5603 transitions. Word has length 36 [2024-11-22 15:17:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:14,594 INFO L471 AbstractCegarLoop]: Abstraction has 3894 states and 5603 transitions. [2024-11-22 15:17:14,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-22 15:17:14,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5603 transitions. [2024-11-22 15:17:14,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 15:17:14,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:14,598 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:14,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 15:17:14,599 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:14,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:14,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1141605303, now seen corresponding path program 1 times [2024-11-22 15:17:14,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:14,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229196627] [2024-11-22 15:17:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:14,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-22 15:17:16,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:16,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229196627] [2024-11-22 15:17:16,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229196627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:16,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:17:16,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:17:16,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995641526] [2024-11-22 15:17:16,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:16,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:17:16,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:16,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:17:16,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:16,177 INFO L87 Difference]: Start difference. First operand 3894 states and 5603 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 15:17:16,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:16,460 INFO L93 Difference]: Finished difference Result 7904 states and 11371 transitions. [2024-11-22 15:17:16,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:17:16,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 112 [2024-11-22 15:17:16,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:16,490 INFO L225 Difference]: With dead ends: 7904 [2024-11-22 15:17:16,490 INFO L226 Difference]: Without dead ends: 4022 [2024-11-22 15:17:16,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:17:16,505 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 45 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:16,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1437 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:16,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2024-11-22 15:17:16,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 3998. [2024-11-22 15:17:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 2986 states have (on average 1.3402545210984596) internal successors, (4002), 3116 states have internal predecessors, (4002), 869 states have call successors, (869), 143 states have call predecessors, (869), 142 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-22 15:17:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5749 transitions. [2024-11-22 15:17:16,790 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5749 transitions. Word has length 112 [2024-11-22 15:17:16,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:16,791 INFO L471 AbstractCegarLoop]: Abstraction has 3998 states and 5749 transitions. [2024-11-22 15:17:16,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 15:17:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5749 transitions. [2024-11-22 15:17:16,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 15:17:16,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:16,797 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:16,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 15:17:16,798 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:16,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:16,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1907163305, now seen corresponding path program 1 times [2024-11-22 15:17:16,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:16,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223119126] [2024-11-22 15:17:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:16,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 15:17:20,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:20,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223119126] [2024-11-22 15:17:20,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223119126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:17:20,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656032725] [2024-11-22 15:17:20,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:20,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:17:20,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:17:20,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:17:20,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 15:17:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:22,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 2981 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 15:17:22,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:17:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 15:17:23,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:17:23,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656032725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:23,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:17:23,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-22 15:17:23,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801697073] [2024-11-22 15:17:23,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:23,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:17:23,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:23,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:17:23,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 15:17:23,584 INFO L87 Difference]: Start difference. First operand 3998 states and 5749 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 15:17:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:23,887 INFO L93 Difference]: Finished difference Result 8036 states and 11561 transitions. [2024-11-22 15:17:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:17:23,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2024-11-22 15:17:23,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:23,930 INFO L225 Difference]: With dead ends: 8036 [2024-11-22 15:17:23,931 INFO L226 Difference]: Without dead ends: 3998 [2024-11-22 15:17:23,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 15:17:23,947 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 2 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:23,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2159 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:17:23,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2024-11-22 15:17:24,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3998. [2024-11-22 15:17:24,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3998 states, 2986 states have (on average 1.3375753516409914) internal successors, (3994), 3116 states have internal predecessors, (3994), 869 states have call successors, (869), 143 states have call predecessors, (869), 142 states have return successors, (878), 770 states have call predecessors, (878), 866 states have call successors, (878) [2024-11-22 15:17:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5741 transitions. [2024-11-22 15:17:24,287 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5741 transitions. Word has length 121 [2024-11-22 15:17:24,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:24,288 INFO L471 AbstractCegarLoop]: Abstraction has 3998 states and 5741 transitions. [2024-11-22 15:17:24,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 15:17:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5741 transitions. [2024-11-22 15:17:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 15:17:24,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:24,291 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:24,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 15:17:24,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:17:24,497 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:24,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:24,497 INFO L85 PathProgramCache]: Analyzing trace with hash -383068151, now seen corresponding path program 1 times [2024-11-22 15:17:24,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:24,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84733437] [2024-11-22 15:17:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:24,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 15:17:28,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:28,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84733437] [2024-11-22 15:17:28,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84733437] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:17:28,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511156031] [2024-11-22 15:17:28,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:28,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:17:28,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:17:28,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:17:28,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 15:17:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:30,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-22 15:17:30,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:17:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 15:17:31,476 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:17:31,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511156031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:17:31,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:17:31,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 12 [2024-11-22 15:17:31,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921018664] [2024-11-22 15:17:31,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:17:31,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 15:17:31,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:31,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 15:17:31,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 15:17:31,479 INFO L87 Difference]: Start difference. First operand 3998 states and 5741 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 15:17:32,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:32,341 INFO L93 Difference]: Finished difference Result 8084 states and 11633 transitions. [2024-11-22 15:17:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 15:17:32,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 125 [2024-11-22 15:17:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:32,363 INFO L225 Difference]: With dead ends: 8084 [2024-11-22 15:17:32,363 INFO L226 Difference]: Without dead ends: 4102 [2024-11-22 15:17:32,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 15:17:32,378 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 2 mSDsluCounter, 5783 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6509 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:32,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6509 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 15:17:32,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2024-11-22 15:17:32,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 4078. [2024-11-22 15:17:32,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4078 states, 3050 states have (on average 1.3304918032786885) internal successors, (4058), 3180 states have internal predecessors, (4058), 869 states have call successors, (869), 143 states have call predecessors, (869), 158 states have return successors, (942), 786 states have call predecessors, (942), 866 states have call successors, (942) [2024-11-22 15:17:32,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 5869 transitions. [2024-11-22 15:17:32,583 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 5869 transitions. Word has length 125 [2024-11-22 15:17:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:32,583 INFO L471 AbstractCegarLoop]: Abstraction has 4078 states and 5869 transitions. [2024-11-22 15:17:32,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 15:17:32,584 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 5869 transitions. [2024-11-22 15:17:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 15:17:32,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:32,586 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:32,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 15:17:32,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 15:17:32,787 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:32,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:32,788 INFO L85 PathProgramCache]: Analyzing trace with hash 229342662, now seen corresponding path program 1 times [2024-11-22 15:17:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:32,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282845213] [2024-11-22 15:17:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:32,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 15:17:36,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:36,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282845213] [2024-11-22 15:17:36,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282845213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:17:36,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833638571] [2024-11-22 15:17:36,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:17:36,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:17:36,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:17:36,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:17:36,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 15:17:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:17:38,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-22 15:17:38,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:17:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 15:17:38,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 15:17:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 15:17:40,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833638571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 15:17:40,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 15:17:40,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-22 15:17:40,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144059700] [2024-11-22 15:17:40,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 15:17:40,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 15:17:40,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:17:40,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 15:17:40,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-22 15:17:40,705 INFO L87 Difference]: Start difference. First operand 4078 states and 5869 transitions. Second operand has 16 states, 16 states have (on average 6.875) internal successors, (110), 12 states have internal predecessors, (110), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 15:17:41,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:17:41,539 INFO L93 Difference]: Finished difference Result 8260 states and 11881 transitions. [2024-11-22 15:17:41,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 15:17:41,540 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 12 states have internal predecessors, (110), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) Word has length 131 [2024-11-22 15:17:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:17:41,563 INFO L225 Difference]: With dead ends: 8260 [2024-11-22 15:17:41,563 INFO L226 Difference]: Without dead ends: 4198 [2024-11-22 15:17:41,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-22 15:17:41,580 INFO L432 NwaCegarLoop]: 735 mSDtfsCounter, 10 mSDsluCounter, 6572 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 7307 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 15:17:41,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 7307 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 15:17:41,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2024-11-22 15:17:41,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 4094. [2024-11-22 15:17:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 3058 states have (on average 1.329627207325049) internal successors, (4066), 3188 states have internal predecessors, (4066), 877 states have call successors, (877), 143 states have call predecessors, (877), 158 states have return successors, (958), 794 states have call predecessors, (958), 874 states have call successors, (958) [2024-11-22 15:17:41,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 5901 transitions. [2024-11-22 15:17:41,800 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 5901 transitions. Word has length 131 [2024-11-22 15:17:41,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:17:41,800 INFO L471 AbstractCegarLoop]: Abstraction has 4094 states and 5901 transitions. [2024-11-22 15:17:41,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 12 states have internal predecessors, (110), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-22 15:17:41,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 5901 transitions. [2024-11-22 15:17:41,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-22 15:17:41,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:17:41,804 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:17:41,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 15:17:42,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:17:42,004 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:17:42,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:17:42,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1855170391, now seen corresponding path program 2 times [2024-11-22 15:17:42,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:17:42,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381478501] [2024-11-22 15:17:42,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 15:17:42,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:17:43,318 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 15:17:43,318 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 15:17:45,440 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 15:17:45,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:17:45,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381478501] [2024-11-22 15:17:45,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381478501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:17:45,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143812102] [2024-11-22 15:17:45,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 15:17:45,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:17:45,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:17:45,442 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:17:45,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process