./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.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 4e983f35cff7a0c67962e23f6c3d66292f25c728e4d1df204c975f306d1512a3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 15:19:13,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 15:19:13,095 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 15:19:13,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 15:19:13,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 15:19:13,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 15:19:13,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 15:19:13,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 15:19:13,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 15:19:13,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 15:19:13,132 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 15:19:13,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 15:19:13,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 15:19:13,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 15:19:13,133 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 15:19:13,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 15:19:13,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 15:19:13,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 15:19:13,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 15:19:13,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 15:19:13,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 15:19:13,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 15:19:13,137 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 15:19:13,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 15:19:13,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 15:19:13,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 15:19:13,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 15:19:13,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 15:19:13,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 15:19:13,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:19:13,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 15:19:13,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 15:19:13,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 15:19:13,142 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 15:19:13,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 15:19:13,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 15:19:13,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 15:19:13,143 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 15:19:13,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 15:19:13,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e983f35cff7a0c67962e23f6c3d66292f25c728e4d1df204c975f306d1512a3 [2024-11-22 15:19:13,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 15:19:13,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 15:19:13,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 15:19:13,450 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 15:19:13,450 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 15:19:13,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-11-22 15:19:14,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 15:19:15,228 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 15:19:15,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-11-22 15:19:15,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed04162a/c825fd85faeb4c3ab0f5b58d5cb3917b/FLAG4ab5bc4a8 [2024-11-22 15:19:15,274 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed04162a/c825fd85faeb4c3ab0f5b58d5cb3917b [2024-11-22 15:19:15,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 15:19:15,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 15:19:15,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 15:19:15,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 15:19:15,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 15:19:15,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:19:15" (1/1) ... [2024-11-22 15:19:15,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f40939b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:15, skipping insertion in model container [2024-11-22 15:19:15,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:19:15" (1/1) ... [2024-11-22 15:19:15,385 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 15:19:16,129 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2024-11-22 15:19:16,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:19:16,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 15:19:16,750 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2024-11-22 15:19:16,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 15:19:16,892 INFO L204 MainTranslator]: Completed translation [2024-11-22 15:19:16,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16 WrapperNode [2024-11-22 15:19:16,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 15:19:16,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 15:19:16,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 15:19:16,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 15:19:16,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:16,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,010 INFO L138 Inliner]: procedures = 102, calls = 350, calls flagged for inlining = 36, calls inlined = 33, statements flattened = 1083 [2024-11-22 15:19:17,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 15:19:17,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 15:19:17,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 15:19:17,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 15:19:17,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,043 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,122 INFO L175 MemorySlicer]: Split 195 memory accesses to 10 slices as follows [19, 2, 44, 79, 2, 2, 17, 3, 26, 1]. 41 percent of accesses are in the largest equivalence class. The 45 initializations are split as follows [0, 2, 0, 2, 0, 0, 15, 0, 26, 0]. The 86 writes are split as follows [19, 0, 44, 19, 0, 1, 1, 1, 0, 1]. [2024-11-22 15:19:17,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 15:19:17,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 15:19:17,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 15:19:17,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 15:19:17,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (1/1) ... [2024-11-22 15:19:17,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 15:19:17,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:19:17,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 15:19:17,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 15:19:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 15:19:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 15:19:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 15:19:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-22 15:19:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-22 15:19:17,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 15:19:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 15:19:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-22 15:19:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-22 15:19:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-22 15:19:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-22 15:19:17,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-22 15:19:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 15:19:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 15:19:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 15:19:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 15:19:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 15:19:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 15:19:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 15:19:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-22 15:19:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-22 15:19:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-22 15:19:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2024-11-22 15:19:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2024-11-22 15:19:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-22 15:19:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-22 15:19:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-22 15:19:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-22 15:19:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-22 15:19:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-22 15:19:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-22 15:19:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-22 15:19:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-22 15:19:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-22 15:19:17,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-22 15:19:17,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-11-22 15:19:17,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-22 15:19:17,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-22 15:19:17,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-22 15:19:17,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-22 15:19:17,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-22 15:19:17,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-22 15:19:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-22 15:19:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-22 15:19:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-22 15:19:17,387 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-11-22 15:19:17,387 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-22 15:19:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-22 15:19:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-22 15:19:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-22 15:19:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2024-11-22 15:19:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2024-11-22 15:19:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2024-11-22 15:19:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2024-11-22 15:19:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-22 15:19:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-22 15:19:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-22 15:19:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-22 15:19:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 15:19:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 15:19:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-22 15:19:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-22 15:19:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-22 15:19:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-22 15:19:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-22 15:19:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-22 15:19:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-22 15:19:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-22 15:19:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-22 15:19:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-22 15:19:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-22 15:19:17,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-22 15:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2024-11-22 15:19:17,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2024-11-22 15:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 15:19:17,391 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 15:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 15:19:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 15:19:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 15:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 15:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 15:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 15:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 15:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 15:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 15:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-22 15:19:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 15:19:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 15:19:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-22 15:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-22 15:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-22 15:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 15:19:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 15:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 15:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 15:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 15:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 15:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 15:19:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 15:19:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-22 15:19:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-22 15:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-22 15:19:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-22 15:19:17,401 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-22 15:19:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-22 15:19:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2024-11-22 15:19:17,402 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 15:19:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-22 15:19:17,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-22 15:19:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 15:19:17,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 15:19:17,809 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 15:19:17,813 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 15:19:17,863 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-22 15:19:23,423 INFO L? ?]: Removed 592 outVars from TransFormulas that were not future-live. [2024-11-22 15:19:23,423 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 15:19:23,454 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 15:19:23,455 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 15:19:23,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:19:23 BoogieIcfgContainer [2024-11-22 15:19:23,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 15:19:23,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 15:19:23,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 15:19:23,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 15:19:23,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:19:15" (1/3) ... [2024-11-22 15:19:23,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe352da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:19:23, skipping insertion in model container [2024-11-22 15:19:23,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:19:16" (2/3) ... [2024-11-22 15:19:23,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe352da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:19:23, skipping insertion in model container [2024-11-22 15:19:23,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:19:23" (3/3) ... [2024-11-22 15:19:23,464 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-11-22 15:19:23,480 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 15:19:23,480 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 15:19:23,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 15:19:23,565 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;@8b0e188, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 15:19:23,566 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 15:19:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 253 states have (on average 1.383399209486166) internal successors, (350), 259 states have internal predecessors, (350), 63 states have call successors, (63), 23 states have call predecessors, (63), 22 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-22 15:19:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 15:19:23,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:23,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:23,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:23,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:23,593 INFO L85 PathProgramCache]: Analyzing trace with hash 959155080, now seen corresponding path program 1 times [2024-11-22 15:19:23,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:23,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807407814] [2024-11-22 15:19:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:23,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 15:19:24,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:24,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807407814] [2024-11-22 15:19:24,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807407814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:24,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:19:24,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:19:24,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675572084] [2024-11-22 15:19:24,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:24,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:19:24,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:24,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:19:24,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:19:24,629 INFO L87 Difference]: Start difference. First operand has 340 states, 253 states have (on average 1.383399209486166) internal successors, (350), 259 states have internal predecessors, (350), 63 states have call successors, (63), 23 states have call predecessors, (63), 22 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:19:28,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:19:28,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:28,843 INFO L93 Difference]: Finished difference Result 968 states and 1409 transitions. [2024-11-22 15:19:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:19:28,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2024-11-22 15:19:28,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:28,864 INFO L225 Difference]: With dead ends: 968 [2024-11-22 15:19:28,864 INFO L226 Difference]: Without dead ends: 617 [2024-11-22 15:19:28,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:19:28,875 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 411 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:28,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 917 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-22 15:19:28,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-22 15:19:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 617. [2024-11-22 15:19:28,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 466 states have (on average 1.3562231759656653) internal successors, (632), 466 states have internal predecessors, (632), 110 states have call successors, (110), 41 states have call predecessors, (110), 40 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-22 15:19:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 851 transitions. [2024-11-22 15:19:28,980 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 851 transitions. Word has length 36 [2024-11-22 15:19:28,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:28,983 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 851 transitions. [2024-11-22 15:19:28,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-22 15:19:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 851 transitions. [2024-11-22 15:19:28,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-22 15:19:28,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:28,987 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:28,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 15:19:28,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:28,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:28,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1012161092, now seen corresponding path program 1 times [2024-11-22 15:19:28,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:28,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916142812] [2024-11-22 15:19:28,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:28,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 15:19:29,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:29,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916142812] [2024-11-22 15:19:29,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916142812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:29,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:19:29,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 15:19:29,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186139034] [2024-11-22 15:19:29,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:29,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 15:19:29,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:29,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 15:19:29,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:19:29,683 INFO L87 Difference]: Start difference. First operand 617 states and 851 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 15:19:29,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:29,871 INFO L93 Difference]: Finished difference Result 1812 states and 2529 transitions. [2024-11-22 15:19:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 15:19:29,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-22 15:19:29,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:29,888 INFO L225 Difference]: With dead ends: 1812 [2024-11-22 15:19:29,888 INFO L226 Difference]: Without dead ends: 1207 [2024-11-22 15:19:29,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 15:19:29,895 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 423 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:29,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1879 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:19:29,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-11-22 15:19:29,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-11-22 15:19:29,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 912 states have (on average 1.356359649122807) internal successors, (1237), 912 states have internal predecessors, (1237), 216 states have call successors, (216), 79 states have call predecessors, (216), 78 states have return successors, (225), 215 states have call predecessors, (225), 215 states have call successors, (225) [2024-11-22 15:19:29,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1678 transitions. [2024-11-22 15:19:29,978 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1678 transitions. Word has length 46 [2024-11-22 15:19:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:29,978 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1678 transitions. [2024-11-22 15:19:29,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 15:19:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1678 transitions. [2024-11-22 15:19:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 15:19:29,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:29,991 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-22 15:19:29,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 15:19:29,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:29,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:29,992 INFO L85 PathProgramCache]: Analyzing trace with hash 994728132, now seen corresponding path program 1 times [2024-11-22 15:19:29,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:29,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105948925] [2024-11-22 15:19:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:29,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 15:19:30,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:30,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105948925] [2024-11-22 15:19:30,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105948925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:30,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:19:30,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:19:30,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878010943] [2024-11-22 15:19:30,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:30,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:19:30,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:30,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:19:30,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:19:30,495 INFO L87 Difference]: Start difference. First operand 1207 states and 1678 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 15:19:30,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:30,601 INFO L93 Difference]: Finished difference Result 2626 states and 3666 transitions. [2024-11-22 15:19:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:19:30,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-11-22 15:19:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:30,611 INFO L225 Difference]: With dead ends: 2626 [2024-11-22 15:19:30,612 INFO L226 Difference]: Without dead ends: 1437 [2024-11-22 15:19:30,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:19:30,617 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 112 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:30,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 871 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:19:30,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-22 15:19:30,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1428. [2024-11-22 15:19:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1110 states have (on average 1.3783783783783783) internal successors, (1530), 1110 states have internal predecessors, (1530), 229 states have call successors, (229), 89 states have call predecessors, (229), 88 states have return successors, (238), 228 states have call predecessors, (238), 228 states have call successors, (238) [2024-11-22 15:19:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1997 transitions. [2024-11-22 15:19:30,689 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1997 transitions. Word has length 84 [2024-11-22 15:19:30,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:30,691 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1997 transitions. [2024-11-22 15:19:30,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 15:19:30,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1997 transitions. [2024-11-22 15:19:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 15:19:30,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:30,698 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:30,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 15:19:30,699 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:30,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:30,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1460784655, now seen corresponding path program 1 times [2024-11-22 15:19:30,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:30,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11841650] [2024-11-22 15:19:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 15:19:31,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:31,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11841650] [2024-11-22 15:19:31,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11841650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:31,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:19:31,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:19:31,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030205116] [2024-11-22 15:19:31,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:31,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:19:31,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:31,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:19:31,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:19:31,228 INFO L87 Difference]: Start difference. First operand 1428 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 15:19:35,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-22 15:19:35,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:35,432 INFO L93 Difference]: Finished difference Result 3588 states and 5000 transitions. [2024-11-22 15:19:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:19:35,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-22 15:19:35,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:35,445 INFO L225 Difference]: With dead ends: 3588 [2024-11-22 15:19:35,445 INFO L226 Difference]: Without dead ends: 2189 [2024-11-22 15:19:35,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:19:35,452 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 395 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:35,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 879 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-22 15:19:35,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2024-11-22 15:19:35,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2180. [2024-11-22 15:19:35,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2180 states, 1700 states have (on average 1.3658823529411765) internal successors, (2322), 1700 states have internal predecessors, (2322), 331 states have call successors, (331), 149 states have call predecessors, (331), 148 states have return successors, (346), 330 states have call predecessors, (346), 330 states have call successors, (346) [2024-11-22 15:19:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2999 transitions. [2024-11-22 15:19:35,561 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2999 transitions. Word has length 112 [2024-11-22 15:19:35,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:35,561 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 2999 transitions. [2024-11-22 15:19:35,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 15:19:35,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2999 transitions. [2024-11-22 15:19:35,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 15:19:35,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:35,568 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:35,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 15:19:35,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:35,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:35,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1897326005, now seen corresponding path program 1 times [2024-11-22 15:19:35,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:35,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44736576] [2024-11-22 15:19:35,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:35,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:36,344 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 15:19:36,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:36,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44736576] [2024-11-22 15:19:36,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44736576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:36,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:19:36,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 15:19:36,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806073678] [2024-11-22 15:19:36,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:36,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 15:19:36,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:36,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 15:19:36,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:19:36,350 INFO L87 Difference]: Start difference. First operand 2180 states and 2999 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-22 15:19:36,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:36,476 INFO L93 Difference]: Finished difference Result 4369 states and 6070 transitions. [2024-11-22 15:19:36,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 15:19:36,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 1 states have call successors, (11) Word has length 112 [2024-11-22 15:19:36,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:36,491 INFO L225 Difference]: With dead ends: 4369 [2024-11-22 15:19:36,491 INFO L226 Difference]: Without dead ends: 2218 [2024-11-22 15:19:36,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 15:19:36,500 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 0 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:36,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1791 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:19:36,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2024-11-22 15:19:36,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2212. [2024-11-22 15:19:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2212 states, 1724 states have (on average 1.3607888631090488) internal successors, (2346), 1724 states have internal predecessors, (2346), 331 states have call successors, (331), 149 states have call predecessors, (331), 156 states have return successors, (364), 338 states have call predecessors, (364), 330 states have call successors, (364) [2024-11-22 15:19:36,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 3041 transitions. [2024-11-22 15:19:36,591 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 3041 transitions. Word has length 112 [2024-11-22 15:19:36,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:36,592 INFO L471 AbstractCegarLoop]: Abstraction has 2212 states and 3041 transitions. [2024-11-22 15:19:36,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-22 15:19:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 3041 transitions. [2024-11-22 15:19:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 15:19:36,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:36,596 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:36,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 15:19:36,596 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:36,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1553997689, now seen corresponding path program 1 times [2024-11-22 15:19:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:36,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053817128] [2024-11-22 15:19:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:36,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:37,416 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 15:19:37,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:37,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053817128] [2024-11-22 15:19:37,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053817128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:37,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:19:37,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 15:19:37,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644964947] [2024-11-22 15:19:37,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:37,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 15:19:37,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:37,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 15:19:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 15:19:37,421 INFO L87 Difference]: Start difference. First operand 2212 states and 3041 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 15:19:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:37,671 INFO L93 Difference]: Finished difference Result 4451 states and 6158 transitions. [2024-11-22 15:19:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 15:19:37,672 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-22 15:19:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:37,688 INFO L225 Difference]: With dead ends: 4451 [2024-11-22 15:19:37,688 INFO L226 Difference]: Without dead ends: 2268 [2024-11-22 15:19:37,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-22 15:19:37,696 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 16 mSDsluCounter, 3991 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:37,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4438 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 15:19:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2024-11-22 15:19:37,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2244. [2024-11-22 15:19:37,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1748 states have (on average 1.3558352402745995) internal successors, (2370), 1748 states have internal predecessors, (2370), 331 states have call successors, (331), 149 states have call predecessors, (331), 164 states have return successors, (372), 346 states have call predecessors, (372), 330 states have call successors, (372) [2024-11-22 15:19:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3073 transitions. [2024-11-22 15:19:37,798 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3073 transitions. Word has length 119 [2024-11-22 15:19:37,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:37,800 INFO L471 AbstractCegarLoop]: Abstraction has 2244 states and 3073 transitions. [2024-11-22 15:19:37,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 15:19:37,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3073 transitions. [2024-11-22 15:19:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 15:19:37,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:37,804 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:37,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 15:19:37,805 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:37,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:37,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1187204707, now seen corresponding path program 1 times [2024-11-22 15:19:37,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:37,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969263239] [2024-11-22 15:19:37,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:37,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-22 15:19:38,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:38,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969263239] [2024-11-22 15:19:38,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969263239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:38,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:19:38,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 15:19:38,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085256221] [2024-11-22 15:19:38,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:38,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 15:19:38,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:38,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 15:19:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:19:38,297 INFO L87 Difference]: Start difference. First operand 2244 states and 3073 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 15:19:38,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:38,374 INFO L93 Difference]: Finished difference Result 4467 states and 6142 transitions. [2024-11-22 15:19:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 15:19:38,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 145 [2024-11-22 15:19:38,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:38,388 INFO L225 Difference]: With dead ends: 4467 [2024-11-22 15:19:38,389 INFO L226 Difference]: Without dead ends: 2252 [2024-11-22 15:19:38,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 15:19:38,398 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 0 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:38,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 896 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:19:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2024-11-22 15:19:38,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2252. [2024-11-22 15:19:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 1756 states have (on average 1.3542141230068336) internal successors, (2378), 1756 states have internal predecessors, (2378), 331 states have call successors, (331), 149 states have call predecessors, (331), 164 states have return successors, (372), 346 states have call predecessors, (372), 330 states have call successors, (372) [2024-11-22 15:19:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3081 transitions. [2024-11-22 15:19:38,498 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3081 transitions. Word has length 145 [2024-11-22 15:19:38,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:38,499 INFO L471 AbstractCegarLoop]: Abstraction has 2252 states and 3081 transitions. [2024-11-22 15:19:38,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 15:19:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3081 transitions. [2024-11-22 15:19:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-22 15:19:38,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:38,505 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:38,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 15:19:38,505 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:38,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:38,506 INFO L85 PathProgramCache]: Analyzing trace with hash -374958702, now seen corresponding path program 1 times [2024-11-22 15:19:38,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:38,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542275090] [2024-11-22 15:19:38,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:38,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-22 15:19:39,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:39,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542275090] [2024-11-22 15:19:39,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542275090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:39,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 15:19:39,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 15:19:39,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861946254] [2024-11-22 15:19:39,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:39,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:19:39,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:39,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:19:39,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 15:19:39,214 INFO L87 Difference]: Start difference. First operand 2252 states and 3081 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 15:19:39,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:39,300 INFO L93 Difference]: Finished difference Result 4485 states and 6142 transitions. [2024-11-22 15:19:39,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:19:39,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-22 15:19:39,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:39,317 INFO L225 Difference]: With dead ends: 4485 [2024-11-22 15:19:39,318 INFO L226 Difference]: Without dead ends: 2253 [2024-11-22 15:19:39,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 15:19:39,326 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 0 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:39,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1345 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:19:39,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2024-11-22 15:19:39,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2253. [2024-11-22 15:19:39,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2253 states, 1757 states have (on average 1.3540125213431986) internal successors, (2379), 1757 states have internal predecessors, (2379), 331 states have call successors, (331), 149 states have call predecessors, (331), 164 states have return successors, (372), 346 states have call predecessors, (372), 330 states have call successors, (372) [2024-11-22 15:19:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 3082 transitions. [2024-11-22 15:19:39,462 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 3082 transitions. Word has length 125 [2024-11-22 15:19:39,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:39,462 INFO L471 AbstractCegarLoop]: Abstraction has 2253 states and 3082 transitions. [2024-11-22 15:19:39,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 15:19:39,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 3082 transitions. [2024-11-22 15:19:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-22 15:19:39,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:39,467 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:39,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 15:19:39,467 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:39,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:39,467 INFO L85 PathProgramCache]: Analyzing trace with hash -519850124, now seen corresponding path program 1 times [2024-11-22 15:19:39,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:39,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278825727] [2024-11-22 15:19:39,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:39,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-22 15:19:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278825727] [2024-11-22 15:19:40,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278825727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:19:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307283553] [2024-11-22 15:19:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:40,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:19:40,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:19:40,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:19:40,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 15:19:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:41,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 1585 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 15:19:41,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:19:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 15:19:41,443 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 15:19:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-22 15:19:41,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307283553] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 15:19:41,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 15:19:41,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 6] total 10 [2024-11-22 15:19:41,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749261864] [2024-11-22 15:19:41,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:41,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 15:19:41,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:41,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 15:19:41,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 15:19:41,724 INFO L87 Difference]: Start difference. First operand 2253 states and 3082 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 15:19:41,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:41,839 INFO L93 Difference]: Finished difference Result 4480 states and 6136 transitions. [2024-11-22 15:19:41,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 15:19:41,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2024-11-22 15:19:41,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:41,857 INFO L225 Difference]: With dead ends: 4480 [2024-11-22 15:19:41,857 INFO L226 Difference]: Without dead ends: 2254 [2024-11-22 15:19:41,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 15:19:41,869 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 0 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:41,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1344 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 15:19:41,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2024-11-22 15:19:41,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2254. [2024-11-22 15:19:41,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 1758 states have (on average 1.353811149032992) internal successors, (2380), 1758 states have internal predecessors, (2380), 331 states have call successors, (331), 149 states have call predecessors, (331), 164 states have return successors, (372), 346 states have call predecessors, (372), 330 states have call successors, (372) [2024-11-22 15:19:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3083 transitions. [2024-11-22 15:19:41,999 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3083 transitions. Word has length 146 [2024-11-22 15:19:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:42,003 INFO L471 AbstractCegarLoop]: Abstraction has 2254 states and 3083 transitions. [2024-11-22 15:19:42,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 15:19:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3083 transitions. [2024-11-22 15:19:42,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 15:19:42,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:42,008 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:42,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 15:19:42,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:19:42,213 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:42,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1606607351, now seen corresponding path program 1 times [2024-11-22 15:19:42,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:42,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85811490] [2024-11-22 15:19:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:42,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:43,124 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-22 15:19:43,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:43,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85811490] [2024-11-22 15:19:43,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85811490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:19:43,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184402982] [2024-11-22 15:19:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:43,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:19:43,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:19:43,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:19:43,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 15:19:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:44,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 1600 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-22 15:19:44,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:19:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-22 15:19:44,793 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:19:44,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184402982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:44,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:19:44,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2024-11-22 15:19:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101845423] [2024-11-22 15:19:44,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:44,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 15:19:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:44,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 15:19:44,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-11-22 15:19:44,796 INFO L87 Difference]: Start difference. First operand 2254 states and 3083 transitions. Second operand has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 7 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-22 15:19:45,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:45,231 INFO L93 Difference]: Finished difference Result 4811 states and 6678 transitions. [2024-11-22 15:19:45,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 15:19:45,233 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 7 states have call predecessors, (15), 3 states have call successors, (15) Word has length 147 [2024-11-22 15:19:45,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:45,254 INFO L225 Difference]: With dead ends: 4811 [2024-11-22 15:19:45,255 INFO L226 Difference]: Without dead ends: 2588 [2024-11-22 15:19:45,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2024-11-22 15:19:45,265 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 34 mSDsluCounter, 6369 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 6865 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:45,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 6865 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 15:19:45,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2024-11-22 15:19:45,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2310. [2024-11-22 15:19:45,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 1798 states have (on average 1.3414905450500556) internal successors, (2412), 1798 states have internal predecessors, (2412), 339 states have call successors, (339), 149 states have call predecessors, (339), 172 states have return successors, (396), 362 states have call predecessors, (396), 338 states have call successors, (396) [2024-11-22 15:19:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3147 transitions. [2024-11-22 15:19:45,397 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3147 transitions. Word has length 147 [2024-11-22 15:19:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:45,398 INFO L471 AbstractCegarLoop]: Abstraction has 2310 states and 3147 transitions. [2024-11-22 15:19:45,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 12 states have internal predecessors, (98), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 7 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-22 15:19:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3147 transitions. [2024-11-22 15:19:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-22 15:19:45,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:45,408 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:45,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 15:19:45,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 15:19:45,609 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:45,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:45,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1012861034, now seen corresponding path program 1 times [2024-11-22 15:19:45,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:45,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450478702] [2024-11-22 15:19:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:45,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:46,423 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-22 15:19:46,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:46,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450478702] [2024-11-22 15:19:46,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450478702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:19:46,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454591867] [2024-11-22 15:19:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:46,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:19:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:19:46,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:19:46,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 15:19:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:47,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-22 15:19:47,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:19:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-22 15:19:47,922 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 15:19:47,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454591867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 15:19:47,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 15:19:47,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2024-11-22 15:19:47,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417620330] [2024-11-22 15:19:47,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 15:19:47,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 15:19:47,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:19:47,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 15:19:47,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-11-22 15:19:47,925 INFO L87 Difference]: Start difference. First operand 2310 states and 3147 transitions. Second operand has 16 states, 15 states have (on average 5.666666666666667) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 15:19:48,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 15:19:48,342 INFO L93 Difference]: Finished difference Result 4915 states and 6766 transitions. [2024-11-22 15:19:48,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 15:19:48,343 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.666666666666667) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2024-11-22 15:19:48,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 15:19:48,364 INFO L225 Difference]: With dead ends: 4915 [2024-11-22 15:19:48,364 INFO L226 Difference]: Without dead ends: 2636 [2024-11-22 15:19:48,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-11-22 15:19:48,374 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 38 mSDsluCounter, 6984 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 7489 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 15:19:48,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 7489 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 15:19:48,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2024-11-22 15:19:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2326. [2024-11-22 15:19:48,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 1814 states have (on average 1.3384785005512678) internal successors, (2428), 1806 states have internal predecessors, (2428), 339 states have call successors, (339), 149 states have call predecessors, (339), 172 states have return successors, (396), 370 states have call predecessors, (396), 338 states have call successors, (396) [2024-11-22 15:19:48,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3163 transitions. [2024-11-22 15:19:48,525 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3163 transitions. Word has length 127 [2024-11-22 15:19:48,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 15:19:48,526 INFO L471 AbstractCegarLoop]: Abstraction has 2326 states and 3163 transitions. [2024-11-22 15:19:48,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.666666666666667) internal successors, (85), 12 states have internal predecessors, (85), 4 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 15:19:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3163 transitions. [2024-11-22 15:19:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-22 15:19:48,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 15:19:48,536 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 15:19:48,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 15:19:48,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:19:48,738 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 15:19:48,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 15:19:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash 59620504, now seen corresponding path program 1 times [2024-11-22 15:19:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 15:19:48,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685674753] [2024-11-22 15:19:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 15:19:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-22 15:19:49,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 15:19:49,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685674753] [2024-11-22 15:19:49,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685674753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:19:49,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823685658] [2024-11-22 15:19:49,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 15:19:49,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 15:19:49,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 15:19:49,640 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 15:19:49,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 15:19:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 15:19:50,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-22 15:19:50,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 15:19:59,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-22 15:20:25,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-22 15:20:29,047 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 15:20:29,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-22 15:20:29,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-11-22 15:20:33,328 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 15:20:33,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2024-11-22 15:20:33,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 15:20:33,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2024-11-22 15:20:33,696 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 15:20:33,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 15:20:34,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-22 15:20:34,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823685658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 15:20:34,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 15:20:34,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 26] total 29 [2024-11-22 15:20:34,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812134166] [2024-11-22 15:20:34,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 15:20:34,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-22 15:20:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 15:20:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-22 15:20:34,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=997, Unknown=12, NotChecked=0, Total=1122 [2024-11-22 15:20:34,544 INFO L87 Difference]: Start difference. First operand 2326 states and 3163 transitions. Second operand has 29 states, 29 states have (on average 6.9655172413793105) internal successors, (202), 25 states have internal predecessors, (202), 10 states have call successors, (38), 5 states have call predecessors, (38), 11 states have return successors, (38), 12 states have call predecessors, (38), 10 states have call successors, (38) [2024-11-22 15:20:38,561 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 []