./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-3061b6d-m [2024-11-19 03:17:50,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:17:50,594 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:17:50,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:17:50,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:17:50,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:17:50,629 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:17:50,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:17:50,630 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:17:50,630 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:17:50,631 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:17:50,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:17:50,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:17:50,632 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:17:50,632 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:17:50,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:17:50,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:17:50,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:17:50,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:17:50,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:17:50,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:17:50,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:17:50,637 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:17:50,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:17:50,637 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:17:50,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:17:50,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:17:50,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:17:50,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:17:50,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:17:50,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:17:50,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:17:50,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:17:50,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:17:50,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:17:50,641 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:17:50,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:17:50,641 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:17:50,642 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:17:50,642 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2024-11-19 03:17:50,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:17:50,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:17:50,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:17:50,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:17:50,907 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:17:50,909 INFO L431 ainManager$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 [2024-11-19 03:17:52,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:17:52,800 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:17:52,801 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 [2024-11-19 03:17:52,841 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd63b941/5c4bef83b6f344178d01079e6964e7d6/FLAGf0dd8f18e [2024-11-19 03:17:52,858 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd63b941/5c4bef83b6f344178d01079e6964e7d6 [2024-11-19 03:17:52,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:17:52,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:17:52,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:17:52,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:17:52,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:17:52,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:17:52" (1/1) ... [2024-11-19 03:17:52,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5f4c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:52, skipping insertion in model container [2024-11-19 03:17:52,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:17:52" (1/1) ... [2024-11-19 03:17:52,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:17:53,619 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] [2024-11-19 03:17:53,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:17:53,922 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:17:54,019 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] [2024-11-19 03:17:54,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:17:54,198 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:17:54,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54 WrapperNode [2024-11-19 03:17:54,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:17:54,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:17:54,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:17:54,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:17:54,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,418 INFO L138 Inliner]: procedures = 113, calls = 1240, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 2689 [2024-11-19 03:17:54,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:17:54,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:17:54,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:17:54,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:17:54,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,626 INFO L175 MemorySlicer]: Split 666 memory accesses to 14 slices as follows [2, 2, 5, 44, 83, 5, 6, 175, 7, 7, 125, 175, 22, 8]. 26 percent of accesses are in the largest equivalence class. The 213 initializations are split as follows [2, 0, 5, 0, 63, 5, 0, 0, 0, 0, 125, 5, 0, 8]. The 322 writes are split as follows [0, 1, 0, 44, 20, 0, 6, 150, 0, 0, 0, 97, 4, 0]. [2024-11-19 03:17:54,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:17:54,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:17:54,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:17:54,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:17:54,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (1/1) ... [2024-11-19 03:17:54,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:17:54,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:17:54,808 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) [2024-11-19 03:17:54,812 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 [2024-11-19 03:17:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2024-11-19 03:17:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2024-11-19 03:17:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2024-11-19 03:17:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2024-11-19 03:17:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2024-11-19 03:17:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2024-11-19 03:17:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2024-11-19 03:17:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2024-11-19 03:17:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2024-11-19 03:17:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2024-11-19 03:17:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2024-11-19 03:17:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2024-11-19 03:17:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2024-11-19 03:17:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2024-11-19 03:17:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2024-11-19 03:17:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2024-11-19 03:17:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2024-11-19 03:17:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2024-11-19 03:17:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2024-11-19 03:17:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2024-11-19 03:17:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2024-11-19 03:17:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2024-11-19 03:17:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2024-11-19 03:17:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2024-11-19 03:17:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2024-11-19 03:17:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2024-11-19 03:17:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2024-11-19 03:17:54,866 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2024-11-19 03:17:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:17:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:17:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:17:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:17:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:17:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:17:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:17:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:17:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-19 03:17:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-19 03:17:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-19 03:17:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-19 03:17:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-19 03:17:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-19 03:17:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:17:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:17:54,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:17:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:17:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:17:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:17:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:17:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:17:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-19 03:17:54,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-19 03:17:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-19 03:17:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-19 03:17:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-19 03:17:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-19 03:17:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:17:54,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:17:54,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 03:17:54,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 03:17:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 03:17:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 03:17:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 03:17:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 03:17:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-19 03:17:54,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-19 03:17:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:17:54,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:17:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-19 03:17:54,873 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-19 03:17:54,873 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 03:17:54,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 03:17:54,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:17:54,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:17:54,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:17:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:17:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:17:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:17:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:17:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:17:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 03:17:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 03:17:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 03:17:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 03:17:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 03:17:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 03:17:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:17:54,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:17:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-19 03:17:54,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-19 03:17:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-19 03:17:54,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-19 03:17:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:17:54,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:17:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:17:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-19 03:17:54,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-19 03:17:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2024-11-19 03:17:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2024-11-19 03:17:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2024-11-19 03:17:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2024-11-19 03:17:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:17:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-19 03:17:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-19 03:17:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:17:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:17:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:17:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:17:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:17:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:17:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:17:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:17:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-19 03:17:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-19 03:17:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-19 03:17:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-19 03:17:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-19 03:17:54,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-19 03:17:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:17:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-19 03:17:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-19 03:17:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-19 03:17:54,883 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-19 03:17:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:17:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:17:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:17:54,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-19 03:17:54,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:17:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2024-11-19 03:17:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2024-11-19 03:17:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-19 03:17:54,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-19 03:17:54,885 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-19 03:17:54,886 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-19 03:17:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-19 03:17:54,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-19 03:17:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:17:54,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:17:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:17:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:17:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:17:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:17:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:17:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:17:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 03:17:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 03:17:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 03:17:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 03:17:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 03:17:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 03:17:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-19 03:17:54,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-19 03:17:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:17:54,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:17:55,318 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:17:55,321 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:17:55,420 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:17:55,498 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-19 03:18:04,674 INFO L? ?]: Removed 894 outVars from TransFormulas that were not future-live. [2024-11-19 03:18:04,675 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:18:04,706 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:18:04,710 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-19 03:18:04,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:04 BoogieIcfgContainer [2024-11-19 03:18:04,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:18:04,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:18:04,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:18:04,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:18:04,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:17:52" (1/3) ... [2024-11-19 03:18:04,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ee87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:18:04, skipping insertion in model container [2024-11-19 03:18:04,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:17:54" (2/3) ... [2024-11-19 03:18:04,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ee87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:18:04, skipping insertion in model container [2024-11-19 03:18:04,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:04" (3/3) ... [2024-11-19 03:18:04,721 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-19 03:18:04,737 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:18:04,738 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:18:04,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:18:04,830 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;@5084cf86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:18:04,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:18:04,838 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) [2024-11-19 03:18:04,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-19 03:18:04,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:04,848 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] [2024-11-19 03:18:04,849 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:04,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:04,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1757756952, now seen corresponding path program 1 times [2024-11-19 03:18:04,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:04,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952454873] [2024-11-19 03:18:04,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:04,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:18:07,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:07,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952454873] [2024-11-19 03:18:07,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952454873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:07,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:07,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:07,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800394289] [2024-11-19 03:18:07,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:07,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:07,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:07,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:07,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:07,558 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) [2024-11-19 03:18:11,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:18:11,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:11,920 INFO L93 Difference]: Finished difference Result 1530 states and 2297 transitions. [2024-11-19 03:18:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:11,924 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 [2024-11-19 03:18:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:11,952 INFO L225 Difference]: With dead ends: 1530 [2024-11-19 03:18:11,952 INFO L226 Difference]: Without dead ends: 994 [2024-11-19 03:18:11,964 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 [2024-11-19 03:18:11,968 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 [2024-11-19 03:18:11,969 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] [2024-11-19 03:18:11,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-19 03:18:12,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 994. [2024-11-19 03:18:12,122 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) [2024-11-19 03:18:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1427 transitions. [2024-11-19 03:18:12,140 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1427 transitions. Word has length 22 [2024-11-19 03:18:12,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:12,141 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1427 transitions. [2024-11-19 03:18:12,141 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) [2024-11-19 03:18:12,142 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1427 transitions. [2024-11-19 03:18:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 03:18:12,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:12,144 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] [2024-11-19 03:18:12,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:18:12,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:12,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1292697066, now seen corresponding path program 1 times [2024-11-19 03:18:12,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:12,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276344747] [2024-11-19 03:18:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:12,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:14,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:18:14,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:14,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276344747] [2024-11-19 03:18:14,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276344747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:14,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:14,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:14,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465531462] [2024-11-19 03:18:14,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:14,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:14,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:14,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:14,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:14,271 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) [2024-11-19 03:18:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:14,442 INFO L93 Difference]: Finished difference Result 1020 states and 1459 transitions. [2024-11-19 03:18:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:14,443 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 [2024-11-19 03:18:14,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:14,458 INFO L225 Difference]: With dead ends: 1020 [2024-11-19 03:18:14,458 INFO L226 Difference]: Without dead ends: 1007 [2024-11-19 03:18:14,460 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 [2024-11-19 03:18:14,461 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 [2024-11-19 03:18:14,461 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] [2024-11-19 03:18:14,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-11-19 03:18:14,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 994. [2024-11-19 03:18:14,532 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) [2024-11-19 03:18:14,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1426 transitions. [2024-11-19 03:18:14,541 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1426 transitions. Word has length 32 [2024-11-19 03:18:14,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:14,542 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1426 transitions. [2024-11-19 03:18:14,542 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) [2024-11-19 03:18:14,542 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1426 transitions. [2024-11-19 03:18:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 03:18:14,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:14,544 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] [2024-11-19 03:18:14,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:18:14,546 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:14,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:14,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1349955368, now seen corresponding path program 1 times [2024-11-19 03:18:14,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:14,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104594161] [2024-11-19 03:18:14,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:14,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:18:16,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:16,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104594161] [2024-11-19 03:18:16,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104594161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:16,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:16,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:16,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122727385] [2024-11-19 03:18:16,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:16,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:16,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:16,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:16,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:16,908 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) [2024-11-19 03:18:17,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:17,141 INFO L93 Difference]: Finished difference Result 2957 states and 4261 transitions. [2024-11-19 03:18:17,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:17,142 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 [2024-11-19 03:18:17,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:17,160 INFO L225 Difference]: With dead ends: 2957 [2024-11-19 03:18:17,160 INFO L226 Difference]: Without dead ends: 1975 [2024-11-19 03:18:17,165 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 [2024-11-19 03:18:17,169 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 [2024-11-19 03:18:17,170 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] [2024-11-19 03:18:17,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2024-11-19 03:18:17,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1965. [2024-11-19 03:18:17,277 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) [2024-11-19 03:18:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2828 transitions. [2024-11-19 03:18:17,289 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2828 transitions. Word has length 32 [2024-11-19 03:18:17,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:17,289 INFO L471 AbstractCegarLoop]: Abstraction has 1965 states and 2828 transitions. [2024-11-19 03:18:17,290 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) [2024-11-19 03:18:17,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2828 transitions. [2024-11-19 03:18:17,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 03:18:17,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:17,296 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] [2024-11-19 03:18:17,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:18:17,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:17,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:17,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1101314634, now seen corresponding path program 1 times [2024-11-19 03:18:17,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:17,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573360854] [2024-11-19 03:18:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:17,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:18:19,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:19,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573360854] [2024-11-19 03:18:19,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573360854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:19,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:19,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:19,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475377437] [2024-11-19 03:18:19,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:19,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:19,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:19,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:19,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:19,210 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) [2024-11-19 03:18:19,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:19,485 INFO L93 Difference]: Finished difference Result 5866 states and 8447 transitions. [2024-11-19 03:18:19,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:19,486 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 [2024-11-19 03:18:19,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:19,509 INFO L225 Difference]: With dead ends: 5866 [2024-11-19 03:18:19,509 INFO L226 Difference]: Without dead ends: 3913 [2024-11-19 03:18:19,519 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 [2024-11-19 03:18:19,521 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 [2024-11-19 03:18:19,522 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] [2024-11-19 03:18:19,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2024-11-19 03:18:19,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3904. [2024-11-19 03:18:19,782 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) [2024-11-19 03:18:19,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 5618 transitions. [2024-11-19 03:18:19,811 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 5618 transitions. Word has length 33 [2024-11-19 03:18:19,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:19,812 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 5618 transitions. [2024-11-19 03:18:19,812 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) [2024-11-19 03:18:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 5618 transitions. [2024-11-19 03:18:19,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 03:18:19,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:19,814 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] [2024-11-19 03:18:19,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:18:19,815 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:19,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:19,815 INFO L85 PathProgramCache]: Analyzing trace with hash 218731499, now seen corresponding path program 1 times [2024-11-19 03:18:19,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:19,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295600083] [2024-11-19 03:18:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:19,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:18:21,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:21,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295600083] [2024-11-19 03:18:21,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295600083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:21,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:21,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:21,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722958072] [2024-11-19 03:18:21,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:21,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:21,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:21,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:21,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:21,405 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) [2024-11-19 03:18:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:21,565 INFO L93 Difference]: Finished difference Result 3911 states and 5624 transitions. [2024-11-19 03:18:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:21,566 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 [2024-11-19 03:18:21,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:21,589 INFO L225 Difference]: With dead ends: 3911 [2024-11-19 03:18:21,589 INFO L226 Difference]: Without dead ends: 3908 [2024-11-19 03:18:21,591 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 [2024-11-19 03:18:21,592 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 [2024-11-19 03:18:21,592 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] [2024-11-19 03:18:21,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2024-11-19 03:18:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3905. [2024-11-19 03:18:21,781 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) [2024-11-19 03:18:21,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 5619 transitions. [2024-11-19 03:18:21,807 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 5619 transitions. Word has length 34 [2024-11-19 03:18:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:21,809 INFO L471 AbstractCegarLoop]: Abstraction has 3905 states and 5619 transitions. [2024-11-19 03:18:21,810 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) [2024-11-19 03:18:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 5619 transitions. [2024-11-19 03:18:21,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-19 03:18:21,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:21,811 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] [2024-11-19 03:18:21,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:18:21,811 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:21,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:21,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1809506471, now seen corresponding path program 1 times [2024-11-19 03:18:21,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:21,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565249122] [2024-11-19 03:18:21,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:21,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:18:23,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:23,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565249122] [2024-11-19 03:18:23,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565249122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:23,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:23,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:23,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273823945] [2024-11-19 03:18:23,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:23,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:23,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:23,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:23,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:23,179 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) [2024-11-19 03:18:23,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:23,293 INFO L93 Difference]: Finished difference Result 3907 states and 5620 transitions. [2024-11-19 03:18:23,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:23,294 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 [2024-11-19 03:18:23,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:23,317 INFO L225 Difference]: With dead ends: 3907 [2024-11-19 03:18:23,317 INFO L226 Difference]: Without dead ends: 3904 [2024-11-19 03:18:23,320 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 [2024-11-19 03:18:23,321 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 [2024-11-19 03:18:23,321 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] [2024-11-19 03:18:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2024-11-19 03:18:23,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3904. [2024-11-19 03:18:23,547 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) [2024-11-19 03:18:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 5617 transitions. [2024-11-19 03:18:23,566 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 5617 transitions. Word has length 35 [2024-11-19 03:18:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:23,566 INFO L471 AbstractCegarLoop]: Abstraction has 3904 states and 5617 transitions. [2024-11-19 03:18:23,567 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) [2024-11-19 03:18:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 5617 transitions. [2024-11-19 03:18:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-19 03:18:23,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:23,569 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] [2024-11-19 03:18:23,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:18:23,569 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:23,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash -260369234, now seen corresponding path program 1 times [2024-11-19 03:18:23,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:23,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463039693] [2024-11-19 03:18:23,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:23,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:18:25,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:25,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463039693] [2024-11-19 03:18:25,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463039693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:25,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:25,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:25,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613384666] [2024-11-19 03:18:25,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:25,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:25,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:25,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:25,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:25,133 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) [2024-11-19 03:18:25,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:25,267 INFO L93 Difference]: Finished difference Result 3906 states and 5618 transitions. [2024-11-19 03:18:25,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:25,267 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 [2024-11-19 03:18:25,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:25,294 INFO L225 Difference]: With dead ends: 3906 [2024-11-19 03:18:25,295 INFO L226 Difference]: Without dead ends: 3894 [2024-11-19 03:18:25,298 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 [2024-11-19 03:18:25,299 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 [2024-11-19 03:18:25,300 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] [2024-11-19 03:18:25,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3894 states. [2024-11-19 03:18:25,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 3894. [2024-11-19 03:18:25,506 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) [2024-11-19 03:18:25,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5603 transitions. [2024-11-19 03:18:25,528 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5603 transitions. Word has length 36 [2024-11-19 03:18:25,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:25,529 INFO L471 AbstractCegarLoop]: Abstraction has 3894 states and 5603 transitions. [2024-11-19 03:18:25,529 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) [2024-11-19 03:18:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5603 transitions. [2024-11-19 03:18:25,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-19 03:18:25,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:25,533 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] [2024-11-19 03:18:25,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:18:25,534 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:25,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:25,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1141605303, now seen corresponding path program 1 times [2024-11-19 03:18:25,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:25,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21464700] [2024-11-19 03:18:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:25,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-19 03:18:27,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:27,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21464700] [2024-11-19 03:18:27,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21464700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:27,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:27,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:27,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252279375] [2024-11-19 03:18:27,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:27,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:27,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:27,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:27,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:27,003 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) [2024-11-19 03:18:27,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:27,299 INFO L93 Difference]: Finished difference Result 7904 states and 11371 transitions. [2024-11-19 03:18:27,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:27,300 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 [2024-11-19 03:18:27,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:27,326 INFO L225 Difference]: With dead ends: 7904 [2024-11-19 03:18:27,326 INFO L226 Difference]: Without dead ends: 4022 [2024-11-19 03:18:27,340 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 [2024-11-19 03:18:27,342 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 [2024-11-19 03:18:27,342 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] [2024-11-19 03:18:27,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2024-11-19 03:18:27,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 3998. [2024-11-19 03:18:27,529 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) [2024-11-19 03:18:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5749 transitions. [2024-11-19 03:18:27,550 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5749 transitions. Word has length 112 [2024-11-19 03:18:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:27,551 INFO L471 AbstractCegarLoop]: Abstraction has 3998 states and 5749 transitions. [2024-11-19 03:18:27,551 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) [2024-11-19 03:18:27,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5749 transitions. [2024-11-19 03:18:27,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 03:18:27,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:27,554 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] [2024-11-19 03:18:27,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:18:27,555 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:27,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:27,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1907163305, now seen corresponding path program 1 times [2024-11-19 03:18:27,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:27,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449028273] [2024-11-19 03:18:27,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:27,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 03:18:31,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:31,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449028273] [2024-11-19 03:18:31,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449028273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:18:31,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813205818] [2024-11-19 03:18:31,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:31,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:18:31,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:31,370 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) [2024-11-19 03:18:31,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:18:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:33,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 2981 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 03:18:33,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:18:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 03:18:34,726 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:18:34,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813205818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:34,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:18:34,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-19 03:18:34,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391072107] [2024-11-19 03:18:34,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:34,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:18:34,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:34,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:18:34,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 03:18:34,730 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) [2024-11-19 03:18:35,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:35,049 INFO L93 Difference]: Finished difference Result 8036 states and 11561 transitions. [2024-11-19 03:18:35,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:18:35,050 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 [2024-11-19 03:18:35,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:35,086 INFO L225 Difference]: With dead ends: 8036 [2024-11-19 03:18:35,086 INFO L226 Difference]: Without dead ends: 3998 [2024-11-19 03:18:35,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 03:18:35,109 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 [2024-11-19 03:18:35,110 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] [2024-11-19 03:18:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2024-11-19 03:18:35,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3998. [2024-11-19 03:18:35,313 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) [2024-11-19 03:18:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5741 transitions. [2024-11-19 03:18:35,343 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5741 transitions. Word has length 121 [2024-11-19 03:18:35,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:35,344 INFO L471 AbstractCegarLoop]: Abstraction has 3998 states and 5741 transitions. [2024-11-19 03:18:35,345 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) [2024-11-19 03:18:35,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5741 transitions. [2024-11-19 03:18:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-19 03:18:35,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:35,349 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] [2024-11-19 03:18:35,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 03:18:35,550 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 [2024-11-19 03:18:35,550 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:35,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:35,551 INFO L85 PathProgramCache]: Analyzing trace with hash -383068151, now seen corresponding path program 1 times [2024-11-19 03:18:35,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:35,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126470826] [2024-11-19 03:18:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:35,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 03:18:39,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:39,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126470826] [2024-11-19 03:18:39,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126470826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:18:39,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734917127] [2024-11-19 03:18:39,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:39,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:18:39,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:39,219 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) [2024-11-19 03:18:39,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 03:18:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:41,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 2987 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-19 03:18:41,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:18:42,401 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 03:18:42,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:18:42,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734917127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:42,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:18:42,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 12 [2024-11-19 03:18:42,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408565413] [2024-11-19 03:18:42,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:42,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 03:18:42,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:42,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 03:18:42,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 03:18:42,404 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) [2024-11-19 03:18:43,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:43,284 INFO L93 Difference]: Finished difference Result 8084 states and 11633 transitions. [2024-11-19 03:18:43,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 03:18:43,285 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 [2024-11-19 03:18:43,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:43,305 INFO L225 Difference]: With dead ends: 8084 [2024-11-19 03:18:43,305 INFO L226 Difference]: Without dead ends: 4102 [2024-11-19 03:18:43,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 03:18:43,320 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 2 mSDsluCounter, 5737 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6456 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:43,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6456 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 03:18:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4102 states. [2024-11-19 03:18:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4102 to 4078. [2024-11-19 03:18:43,577 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) [2024-11-19 03:18:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 5869 transitions. [2024-11-19 03:18:43,604 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 5869 transitions. Word has length 125 [2024-11-19 03:18:43,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:43,606 INFO L471 AbstractCegarLoop]: Abstraction has 4078 states and 5869 transitions. [2024-11-19 03:18:43,606 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) [2024-11-19 03:18:43,606 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 5869 transitions. [2024-11-19 03:18:43,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 03:18:43,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:43,611 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] [2024-11-19 03:18:43,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 03:18:43,812 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 [2024-11-19 03:18:43,812 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:43,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:43,813 INFO L85 PathProgramCache]: Analyzing trace with hash 229342662, now seen corresponding path program 1 times [2024-11-19 03:18:43,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:43,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578140096] [2024-11-19 03:18:43,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:43,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 03:18:47,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:47,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578140096] [2024-11-19 03:18:47,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578140096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:18:47,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074577601] [2024-11-19 03:18:47,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:47,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:18:47,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:47,151 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) [2024-11-19 03:18:47,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 03:18:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:49,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-19 03:18:49,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:18:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 03:18:49,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:18:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 03:18:51,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074577601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 03:18:51,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 03:18:51,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-19 03:18:51,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802650898] [2024-11-19 03:18:51,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 03:18:51,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 03:18:51,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:51,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 03:18:51,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-19 03:18:51,651 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) [2024-11-19 03:18:52,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:52,507 INFO L93 Difference]: Finished difference Result 8260 states and 11881 transitions. [2024-11-19 03:18:52,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 03:18:52,508 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 [2024-11-19 03:18:52,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:52,534 INFO L225 Difference]: With dead ends: 8260 [2024-11-19 03:18:52,535 INFO L226 Difference]: Without dead ends: 4198 [2024-11-19 03:18:52,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-19 03:18:52,552 INFO L432 NwaCegarLoop]: 736 mSDtfsCounter, 10 mSDsluCounter, 6581 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 7317 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:52,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 7317 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 03:18:52,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4198 states. [2024-11-19 03:18:52,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4198 to 4094. [2024-11-19 03:18:52,739 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) [2024-11-19 03:18:52,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 5901 transitions. [2024-11-19 03:18:52,761 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 5901 transitions. Word has length 131 [2024-11-19 03:18:52,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:52,762 INFO L471 AbstractCegarLoop]: Abstraction has 4094 states and 5901 transitions. [2024-11-19 03:18:52,762 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) [2024-11-19 03:18:52,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 5901 transitions. [2024-11-19 03:18:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-19 03:18:52,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:52,765 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] [2024-11-19 03:18:52,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 03:18:52,966 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 [2024-11-19 03:18:52,966 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:52,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:52,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1855170391, now seen corresponding path program 2 times [2024-11-19 03:18:52,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:52,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971109172] [2024-11-19 03:18:52,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:18:52,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:54,174 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 03:18:54,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 03:18:56,269 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 03:18:56,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971109172] [2024-11-19 03:18:56,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971109172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:18:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686378177] [2024-11-19 03:18:56,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:18:56,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:18:56,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:56,272 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) [2024-11-19 03:18:56,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process