./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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 09:54:26,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 09:54:26,283 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 09:54:26,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 09:54:26,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 09:54:26,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 09:54:26,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 09:54:26,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 09:54:26,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 09:54:26,315 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 09:54:26,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 09:54:26,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 09:54:26,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 09:54:26,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 09:54:26,319 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 09:54:26,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 09:54:26,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 09:54:26,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 09:54:26,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 09:54:26,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 09:54:26,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 09:54:26,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 09:54:26,324 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 09:54:26,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 09:54:26,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 09:54:26,325 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 09:54:26,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 09:54:26,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 09:54:26,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 09:54:26,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:54:26,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 09:54:26,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 09:54:26,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 09:54:26,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 09:54:26,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 09:54:26,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 09:54:26,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 09:54:26,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 09:54:26,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 09:54:26,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63b56e314339d219b900d45eff744f2905a6b0e7256894e9da7286284d3b0c99 [2024-11-12 09:54:26,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 09:54:26,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 09:54:26,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 09:54:26,603 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 09:54:26,603 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 09:54:26,604 INFO L431 ainManager$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 [2024-11-12 09:54:27,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 09:54:28,239 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 09:54:28,239 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 [2024-11-12 09:54:28,273 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6a6a5f0/d559fd35ab36413080c9bfe59f22462f/FLAG78e157263 [2024-11-12 09:54:28,287 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d6a6a5f0/d559fd35ab36413080c9bfe59f22462f [2024-11-12 09:54:28,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 09:54:28,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 09:54:28,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 09:54:28,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 09:54:28,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 09:54:28,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:54:28" (1/1) ... [2024-11-12 09:54:28,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58dfac38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:28, skipping insertion in model container [2024-11-12 09:54:28,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:54:28" (1/1) ... [2024-11-12 09:54:28,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 09:54:28,871 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] [2024-11-12 09:54:29,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:54:29,159 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 09:54:29,241 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] [2024-11-12 09:54:29,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:54:29,410 INFO L204 MainTranslator]: Completed translation [2024-11-12 09:54:29,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29 WrapperNode [2024-11-12 09:54:29,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 09:54:29,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 09:54:29,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 09:54:29,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 09:54:29,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,537 INFO L138 Inliner]: procedures = 113, calls = 1240, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 2689 [2024-11-12 09:54:29,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 09:54:29,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 09:54:29,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 09:54:29,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 09:54:29,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,564 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,724 INFO L175 MemorySlicer]: Split 666 memory accesses to 14 slices as follows [7, 2, 7, 5, 44, 83, 22, 5, 175, 2, 125, 175, 6, 8]. 26 percent of accesses are in the largest equivalence class. The 213 initializations are split as follows [0, 2, 0, 5, 0, 63, 0, 5, 0, 0, 125, 5, 0, 8]. The 322 writes are split as follows [0, 0, 0, 0, 44, 20, 4, 0, 150, 1, 0, 97, 6, 0]. [2024-11-12 09:54:29,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 09:54:29,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 09:54:29,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 09:54:29,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 09:54:29,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (1/1) ... [2024-11-12 09:54:29,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:54:29,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 09:54:29,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 09:54:29,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 09:54:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2024-11-12 09:54:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2024-11-12 09:54:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2024-11-12 09:54:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2024-11-12 09:54:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2024-11-12 09:54:29,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2024-11-12 09:54:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2024-11-12 09:54:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2024-11-12 09:54:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2024-11-12 09:54:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2024-11-12 09:54:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2024-11-12 09:54:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2024-11-12 09:54:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2024-11-12 09:54:29,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2024-11-12 09:54:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2024-11-12 09:54:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2024-11-12 09:54:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2024-11-12 09:54:29,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2024-11-12 09:54:29,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-12 09:54:29,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 09:54:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-12 09:54:29,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-12 09:54:29,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-12 09:54:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 09:54:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 09:54:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 09:54:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 09:54:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 09:54:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 09:54:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-12 09:54:29,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-12 09:54:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-12 09:54:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-12 09:54:29,934 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-12 09:54:29,934 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-12 09:54:29,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-12 09:54:29,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-12 09:54:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-12 09:54:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-12 09:54:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-12 09:54:29,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-12 09:54:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-12 09:54:29,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-12 09:54:29,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-12 09:54:29,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-12 09:54:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 09:54:29,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 09:54:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 09:54:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-12 09:54:29,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-12 09:54:29,937 INFO L130 BoogieDeclarations]: Found specification of procedure gtco_disconnect [2024-11-12 09:54:29,937 INFO L138 BoogieDeclarations]: Found implementation of procedure gtco_disconnect [2024-11-12 09:54:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2024-11-12 09:54:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2024-11-12 09:54:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 09:54:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-12 09:54:29,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-12 09:54:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 09:54:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 09:54:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 09:54:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 09:54:29,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-12 09:54:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-12 09:54:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 09:54:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-12 09:54:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-12 09:54:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-12 09:54:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-12 09:54:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 09:54:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 09:54:29,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 09:54:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 09:54:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 09:54:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 09:54:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-12 09:54:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-12 09:54:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-12 09:54:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-12 09:54:29,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-12 09:54:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-12 09:54:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-12 09:54:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-12 09:54:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 09:54:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2024-11-12 09:54:29,942 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2024-11-12 09:54:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-12 09:54:29,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-12 09:54:29,942 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-12 09:54:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-12 09:54:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-12 09:54:29,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-12 09:54:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 09:54:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 09:54:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 09:54:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 09:54:29,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 09:54:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 09:54:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-12 09:54:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-12 09:54:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-12 09:54:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-12 09:54:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-12 09:54:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-12 09:54:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-12 09:54:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-12 09:54:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-12 09:54:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-12 09:54:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 09:54:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 09:54:30,294 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 09:54:30,298 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 09:54:30,380 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-12 09:54:30,458 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-12 09:54:38,200 INFO L? ?]: Removed 894 outVars from TransFormulas that were not future-live. [2024-11-12 09:54:38,201 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 09:54:38,219 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 09:54:38,220 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-12 09:54:38,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:54:38 BoogieIcfgContainer [2024-11-12 09:54:38,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 09:54:38,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 09:54:38,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 09:54:38,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 09:54:38,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 09:54:28" (1/3) ... [2024-11-12 09:54:38,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ae8fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:54:38, skipping insertion in model container [2024-11-12 09:54:38,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:54:29" (2/3) ... [2024-11-12 09:54:38,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ae8fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:54:38, skipping insertion in model container [2024-11-12 09:54:38,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:54:38" (3/3) ... [2024-11-12 09:54:38,227 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--tablet--gtco.ko-entry_point.cil.out.i [2024-11-12 09:54:38,252 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 09:54:38,256 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 09:54:38,327 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 09:54:38,333 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;@52eda1e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 09:54:38,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 09:54:38,339 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) [2024-11-12 09:54:38,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-12 09:54:38,345 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:54:38,346 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 09:54:38,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:54:38,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:54:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1757756952, now seen corresponding path program 1 times [2024-11-12 09:54:38,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:54:38,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360355232] [2024-11-12 09:54:38,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:54:38,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:54:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:54:40,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:54:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:54:40,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 09:54:40,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:54:40,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360355232] [2024-11-12 09:54:40,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360355232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:54:40,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:54:40,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:54:40,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127188906] [2024-11-12 09:54:40,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:54:40,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:54:40,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:54:40,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:54:40,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:54:40,565 INFO L87 Difference]: Start difference. First operand has 523 states, 383 states have (on average 1.3759791122715406) internal successors, (527), 409 states have internal predecessors, (527), 119 states have call successors, (119), 21 states have call predecessors, (119), 19 states have return successors, (115), 103 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 09:54:44,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:54:48,697 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 [] [2024-11-12 09:54:54,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:54:54,887 INFO L93 Difference]: Finished difference Result 1564 states and 2343 transitions. [2024-11-12 09:54:54,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 09:54:54,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-12 09:54:54,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:54:54,905 INFO L225 Difference]: With dead ends: 1564 [2024-11-12 09:54:54,905 INFO L226 Difference]: Without dead ends: 1028 [2024-11-12 09:54:54,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:54:54,913 INFO L435 NwaCegarLoop]: 1237 mSDtfsCounter, 724 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 150 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-12 09:54:54,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2514 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 629 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2024-11-12 09:54:54,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-12 09:54:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 994. [2024-11-12 09:54:55,051 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) [2024-11-12 09:54:55,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1427 transitions. [2024-11-12 09:54:55,060 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1427 transitions. Word has length 22 [2024-11-12 09:54:55,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:54:55,062 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1427 transitions. [2024-11-12 09:54:55,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 09:54:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1427 transitions. [2024-11-12 09:54:55,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-12 09:54:55,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:54:55,064 INFO L218 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] [2024-11-12 09:54:55,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 09:54:55,065 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:54:55,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:54:55,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1292697066, now seen corresponding path program 1 times [2024-11-12 09:54:55,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:54:55,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800868577] [2024-11-12 09:54:55,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:54:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:54:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:54:56,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:54:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:54:56,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 09:54:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:54:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 09:54:56,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:54:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800868577] [2024-11-12 09:54:56,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800868577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:54:56,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:54:56,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:54:56,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948500680] [2024-11-12 09:54:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:54:56,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:54:56,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:54:56,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:54:56,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:54:56,723 INFO L87 Difference]: Start difference. First operand 994 states and 1427 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:00,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:55:03,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:55:03,330 INFO L93 Difference]: Finished difference Result 1054 states and 1505 transitions. [2024-11-12 09:55:03,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 09:55:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-12 09:55:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:55:03,339 INFO L225 Difference]: With dead ends: 1054 [2024-11-12 09:55:03,340 INFO L226 Difference]: Without dead ends: 1041 [2024-11-12 09:55:03,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:55:03,344 INFO L435 NwaCegarLoop]: 666 mSDtfsCounter, 708 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-12 09:55:03,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1082 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 254 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-11-12 09:55:03,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-12 09:55:03,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 994. [2024-11-12 09:55:03,423 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) [2024-11-12 09:55:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1426 transitions. [2024-11-12 09:55:03,430 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1426 transitions. Word has length 32 [2024-11-12 09:55:03,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:55:03,430 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1426 transitions. [2024-11-12 09:55:03,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:03,431 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1426 transitions. [2024-11-12 09:55:03,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-12 09:55:03,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:55:03,432 INFO L218 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] [2024-11-12 09:55:03,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 09:55:03,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:55:03,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:55:03,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1349955368, now seen corresponding path program 1 times [2024-11-12 09:55:03,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:55:03,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059964482] [2024-11-12 09:55:03,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:55:03,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:55:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:05,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:55:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:05,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 09:55:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:05,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 09:55:05,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:55:05,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059964482] [2024-11-12 09:55:05,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059964482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:55:05,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:55:05,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:55:05,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971882680] [2024-11-12 09:55:05,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:55:05,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:55:05,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:55:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:55:05,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:55:05,392 INFO L87 Difference]: Start difference. First operand 994 states and 1426 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:09,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:55:14,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:55:14,023 INFO L93 Difference]: Finished difference Result 3023 states and 4351 transitions. [2024-11-12 09:55:14,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 09:55:14,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-12 09:55:14,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:55:14,033 INFO L225 Difference]: With dead ends: 3023 [2024-11-12 09:55:14,033 INFO L226 Difference]: Without dead ends: 2041 [2024-11-12 09:55:14,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:55:14,038 INFO L435 NwaCegarLoop]: 653 mSDtfsCounter, 758 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 248 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-12 09:55:14,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 1580 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2024-11-12 09:55:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2024-11-12 09:55:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 1973. [2024-11-12 09:55:14,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1973 states, 1460 states have (on average 1.3390410958904109) internal successors, (1955), 1528 states have internal predecessors, (1955), 439 states have call successors, (439), 72 states have call predecessors, (439), 73 states have return successors, (442), 386 states have call predecessors, (442), 434 states have call successors, (442) [2024-11-12 09:55:14,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2836 transitions. [2024-11-12 09:55:14,117 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2836 transitions. Word has length 32 [2024-11-12 09:55:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:55:14,117 INFO L471 AbstractCegarLoop]: Abstraction has 1973 states and 2836 transitions. [2024-11-12 09:55:14,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2836 transitions. [2024-11-12 09:55:14,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-12 09:55:14,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:55:14,121 INFO L218 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] [2024-11-12 09:55:14,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 09:55:14,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:55:14,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:55:14,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1101314634, now seen corresponding path program 1 times [2024-11-12 09:55:14,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:55:14,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267733698] [2024-11-12 09:55:14,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:55:14,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:55:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:15,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:55:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:15,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 09:55:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 09:55:15,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:55:15,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267733698] [2024-11-12 09:55:15,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267733698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:55:15,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:55:15,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:55:15,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468581269] [2024-11-12 09:55:15,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:55:15,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:55:15,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:55:15,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:55:15,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:55:15,898 INFO L87 Difference]: Start difference. First operand 1973 states and 2836 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:19,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:55:25,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:55:25,759 INFO L93 Difference]: Finished difference Result 6004 states and 8633 transitions. [2024-11-12 09:55:25,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 09:55:25,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-12 09:55:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:55:25,779 INFO L225 Difference]: With dead ends: 6004 [2024-11-12 09:55:25,780 INFO L226 Difference]: Without dead ends: 4043 [2024-11-12 09:55:25,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:55:25,788 INFO L435 NwaCegarLoop]: 1186 mSDtfsCounter, 728 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-12 09:55:25,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 2423 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 609 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2024-11-12 09:55:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2024-11-12 09:55:25,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 3920. [2024-11-12 09:55:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 2903 states have (on average 1.3368928694454012) internal successors, (3881), 3035 states have internal predecessors, (3881), 871 states have call successors, (871), 142 states have call predecessors, (871), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-12 09:55:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5634 transitions. [2024-11-12 09:55:25,936 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5634 transitions. Word has length 33 [2024-11-12 09:55:25,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:55:25,937 INFO L471 AbstractCegarLoop]: Abstraction has 3920 states and 5634 transitions. [2024-11-12 09:55:25,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5634 transitions. [2024-11-12 09:55:25,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 09:55:25,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:55:25,939 INFO L218 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] [2024-11-12 09:55:25,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 09:55:25,940 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:55:25,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:55:25,940 INFO L85 PathProgramCache]: Analyzing trace with hash 218731499, now seen corresponding path program 1 times [2024-11-12 09:55:25,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:55:25,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640413273] [2024-11-12 09:55:25,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:55:25,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:55:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:27,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:55:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:27,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 09:55:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:27,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 09:55:27,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:55:27,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640413273] [2024-11-12 09:55:27,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640413273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:55:27,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:55:27,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:55:27,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227844519] [2024-11-12 09:55:27,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:55:27,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:55:27,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:55:27,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:55:27,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:55:27,271 INFO L87 Difference]: Start difference. First operand 3920 states and 5634 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:31,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:55:37,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:55:37,065 INFO L93 Difference]: Finished difference Result 4041 states and 5802 transitions. [2024-11-12 09:55:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 09:55:37,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-12 09:55:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:55:37,095 INFO L225 Difference]: With dead ends: 4041 [2024-11-12 09:55:37,095 INFO L226 Difference]: Without dead ends: 4038 [2024-11-12 09:55:37,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:55:37,101 INFO L435 NwaCegarLoop]: 1186 mSDtfsCounter, 725 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 146 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-12 09:55:37,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2422 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 602 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2024-11-12 09:55:37,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2024-11-12 09:55:37,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 3921. [2024-11-12 09:55:37,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 2904 states have (on average 1.3367768595041323) internal successors, (3882), 3036 states have internal predecessors, (3882), 871 states have call successors, (871), 142 states have call predecessors, (871), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-12 09:55:37,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 5635 transitions. [2024-11-12 09:55:37,253 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 5635 transitions. Word has length 34 [2024-11-12 09:55:37,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:55:37,254 INFO L471 AbstractCegarLoop]: Abstraction has 3921 states and 5635 transitions. [2024-11-12 09:55:37,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 5635 transitions. [2024-11-12 09:55:37,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-12 09:55:37,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:55:37,257 INFO L218 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] [2024-11-12 09:55:37,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 09:55:37,258 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:55:37,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:55:37,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1809506471, now seen corresponding path program 1 times [2024-11-12 09:55:37,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:55:37,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807651226] [2024-11-12 09:55:37,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:55:37,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:55:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:38,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:55:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:38,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 09:55:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 09:55:38,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:55:38,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807651226] [2024-11-12 09:55:38,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807651226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:55:38,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:55:38,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:55:38,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561980368] [2024-11-12 09:55:38,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:55:38,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:55:38,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:55:38,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:55:38,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:55:38,590 INFO L87 Difference]: Start difference. First operand 3921 states and 5635 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:42,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:55:45,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:55:45,484 INFO L93 Difference]: Finished difference Result 4037 states and 5798 transitions. [2024-11-12 09:55:45,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 09:55:45,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-11-12 09:55:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:55:45,505 INFO L225 Difference]: With dead ends: 4037 [2024-11-12 09:55:45,506 INFO L226 Difference]: Without dead ends: 4034 [2024-11-12 09:55:45,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:55:45,509 INFO L435 NwaCegarLoop]: 648 mSDtfsCounter, 687 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 128 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-12 09:55:45,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1037 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-11-12 09:55:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2024-11-12 09:55:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3920. [2024-11-12 09:55:45,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 2904 states have (on average 1.3364325068870524) internal successors, (3881), 3035 states have internal predecessors, (3881), 870 states have call successors, (870), 142 states have call predecessors, (870), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-12 09:55:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5633 transitions. [2024-11-12 09:55:45,667 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5633 transitions. Word has length 35 [2024-11-12 09:55:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:55:45,668 INFO L471 AbstractCegarLoop]: Abstraction has 3920 states and 5633 transitions. [2024-11-12 09:55:45,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-12 09:55:45,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5633 transitions. [2024-11-12 09:55:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-12 09:55:45,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:55:45,670 INFO L218 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] [2024-11-12 09:55:45,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 09:55:45,670 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:55:45,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:55:45,671 INFO L85 PathProgramCache]: Analyzing trace with hash -260369234, now seen corresponding path program 1 times [2024-11-12 09:55:45,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:55:45,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846053588] [2024-11-12 09:55:45,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:55:45,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:55:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:47,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:55:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:47,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-12 09:55:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 09:55:47,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:55:47,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846053588] [2024-11-12 09:55:47,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846053588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:55:47,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:55:47,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:55:47,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375529877] [2024-11-12 09:55:47,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:55:47,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:55:47,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:55:47,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:55:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:55:47,095 INFO L87 Difference]: Start difference. First operand 3920 states and 5633 transitions. Second operand has 4 states, 4 states have (on average 7.0) 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) [2024-11-12 09:55:51,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 09:55:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:55:53,920 INFO L93 Difference]: Finished difference Result 4036 states and 5796 transitions. [2024-11-12 09:55:53,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 09:55:53,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) 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 [2024-11-12 09:55:53,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:55:53,936 INFO L225 Difference]: With dead ends: 4036 [2024-11-12 09:55:53,937 INFO L226 Difference]: Without dead ends: 4024 [2024-11-12 09:55:53,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:55:53,939 INFO L435 NwaCegarLoop]: 648 mSDtfsCounter, 684 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 127 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-12 09:55:53,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1038 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2024-11-12 09:55:53,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4024 states. [2024-11-12 09:55:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4024 to 3910. [2024-11-12 09:55:54,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 2895 states have (on average 1.3360967184801382) internal successors, (3868), 3025 states have internal predecessors, (3868), 869 states have call successors, (869), 142 states have call predecessors, (869), 145 states have return successors, (882), 770 states have call predecessors, (882), 866 states have call successors, (882) [2024-11-12 09:55:54,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5619 transitions. [2024-11-12 09:55:54,083 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5619 transitions. Word has length 36 [2024-11-12 09:55:54,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:55:54,083 INFO L471 AbstractCegarLoop]: Abstraction has 3910 states and 5619 transitions. [2024-11-12 09:55:54,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) 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) [2024-11-12 09:55:54,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5619 transitions. [2024-11-12 09:55:54,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-12 09:55:54,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:55:54,087 INFO L218 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] [2024-11-12 09:55:54,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 09:55:54,087 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:55:54,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:55:54,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1141605303, now seen corresponding path program 1 times [2024-11-12 09:55:54,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:55:54,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396706318] [2024-11-12 09:55:54,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:55:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:55:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:55:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 09:55:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 09:55:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-12 09:55:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-12 09:55:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-12 09:55:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-12 09:55:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-12 09:55:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-12 09:55:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-12 09:55:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-12 09:55:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:55,678 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-12 09:55:55,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:55:55,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396706318] [2024-11-12 09:55:55,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396706318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:55:55,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:55:55,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 09:55:55,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899909569] [2024-11-12 09:55:55,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:55:55,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 09:55:55,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:55:55,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 09:55:55,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 09:55:55,681 INFO L87 Difference]: Start difference. First operand 3910 states and 5619 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)