./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-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-3061b6d-m [2024-11-19 03:20:27,089 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:20:27,174 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:20:27,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:20:27,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:20:27,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:20:27,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:20:27,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:20:27,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:20:27,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:20:27,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:20:27,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:20:27,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:20:27,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:20:27,219 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:20:27,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:20:27,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:20:27,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:20:27,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:20:27,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:20:27,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:20:27,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:20:27,222 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:20:27,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:20:27,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:20:27,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:20:27,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:20:27,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:20:27,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:20:27,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:20:27,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:20:27,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:20:27,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:20:27,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:20:27,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:20:27,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:20:27,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:20:27,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:20:27,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:20:27,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e983f35cff7a0c67962e23f6c3d66292f25c728e4d1df204c975f306d1512a3 [2024-11-19 03:20:27,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:20:27,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:20:27,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:20:27,515 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:20:27,515 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:20:27,517 INFO L431 ainManager$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 [2024-11-19 03:20:29,039 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:20:29,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:20:29,486 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 [2024-11-19 03:20:29,518 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226df278f/5710261e9fca4da4b23c2be46f508db9/FLAG8eaee0583 [2024-11-19 03:20:29,626 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226df278f/5710261e9fca4da4b23c2be46f508db9 [2024-11-19 03:20:29,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:20:29,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:20:29,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:20:29,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:20:29,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:20:29,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:29" (1/1) ... [2024-11-19 03:20:29,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314cc8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:29, skipping insertion in model container [2024-11-19 03:20:29,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:29" (1/1) ... [2024-11-19 03:20:29,742 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:20:30,514 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] [2024-11-19 03:20:30,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:20:30,992 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:20:31,195 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] [2024-11-19 03:20:31,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:20:31,315 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:20:31,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31 WrapperNode [2024-11-19 03:20:31,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:20:31,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:20:31,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:20:31,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:20:31,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,454 INFO L138 Inliner]: procedures = 102, calls = 350, calls flagged for inlining = 36, calls inlined = 33, statements flattened = 1083 [2024-11-19 03:20:31,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:20:31,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:20:31,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:20:31,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:20:31,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,584 INFO L175 MemorySlicer]: Split 195 memory accesses to 10 slices as follows [19, 2, 44, 3, 79, 2, 2, 26, 17, 1]. 41 percent of accesses are in the largest equivalence class. The 45 initializations are split as follows [0, 2, 0, 0, 2, 0, 0, 26, 15, 0]. The 86 writes are split as follows [19, 0, 44, 1, 19, 1, 0, 0, 1, 1]. [2024-11-19 03:20:31,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:20:31,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:20:31,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:20:31,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:20:31,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (1/1) ... [2024-11-19 03:20:31,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:20:31,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:20:31,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 03:20:31,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 03:20:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:20:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:20:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:20:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:20:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:20:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:20:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:20:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:20:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-19 03:20:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-19 03:20:31,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-19 03:20:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-19 03:20:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-19 03:20:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-19 03:20:31,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-19 03:20:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-19 03:20:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-19 03:20:31,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-19 03:20:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-19 03:20:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-19 03:20:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-19 03:20:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-19 03:20:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:20:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:20:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:20:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:20:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:20:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:20:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:20:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:20:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-19 03:20:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-19 03:20:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:20:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:20:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:20:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:20:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:20:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:20:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:20:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:20:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:20:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:20:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 03:20:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 03:20:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2024-11-19 03:20:31,820 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2024-11-19 03:20:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-19 03:20:31,821 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-19 03:20:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:20:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:20:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:20:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:20:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:20:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:20:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:20:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-19 03:20:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-19 03:20:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-11-19 03:20:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:20:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:20:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:20:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:20:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:20:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:20:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:20:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-19 03:20:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-19 03:20:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-11-19 03:20:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-19 03:20:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-19 03:20:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:20:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:20:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2024-11-19 03:20:31,824 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2024-11-19 03:20:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2024-11-19 03:20:31,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2024-11-19 03:20:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-19 03:20:31,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-19 03:20:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 03:20:31,824 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 03:20:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:20:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:20:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:20:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:20:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:20:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:20:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:20:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:20:31,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 03:20:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 03:20:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:20:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:20:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-19 03:20:31,828 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-19 03:20:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-19 03:20:31,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-19 03:20:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-19 03:20:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-19 03:20:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-19 03:20:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-19 03:20:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-19 03:20:31,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-19 03:20:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-19 03:20:31,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-19 03:20:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-19 03:20:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-19 03:20:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-19 03:20:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-19 03:20:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-19 03:20:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-19 03:20:31,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-19 03:20:31,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-19 03:20:31,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-19 03:20:31,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-19 03:20:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2024-11-19 03:20:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2024-11-19 03:20:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:20:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:20:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:20:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:20:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:20:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:20:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:20:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:20:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:20:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 03:20:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-19 03:20:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-19 03:20:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-19 03:20:31,836 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-19 03:20:31,836 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2024-11-19 03:20:31,837 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2024-11-19 03:20:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:20:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:20:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:20:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:20:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:20:31,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:20:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:20:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:20:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 03:20:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 03:20:31,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-19 03:20:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-19 03:20:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-19 03:20:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-19 03:20:31,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-19 03:20:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-19 03:20:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-19 03:20:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-19 03:20:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-19 03:20:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-19 03:20:31,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-19 03:20:31,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-19 03:20:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:20:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:20:32,273 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:20:32,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:20:32,331 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:20:38,076 INFO L? ?]: Removed 592 outVars from TransFormulas that were not future-live. [2024-11-19 03:20:38,076 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:20:38,105 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:20:38,105 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 03:20:38,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:38 BoogieIcfgContainer [2024-11-19 03:20:38,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:20:38,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:20:38,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:20:38,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:20:38,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:20:29" (1/3) ... [2024-11-19 03:20:38,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5533ab25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:20:38, skipping insertion in model container [2024-11-19 03:20:38,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:31" (2/3) ... [2024-11-19 03:20:38,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5533ab25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:20:38, skipping insertion in model container [2024-11-19 03:20:38,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:38" (3/3) ... [2024-11-19 03:20:38,121 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 [2024-11-19 03:20:38,139 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:20:38,140 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:20:38,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:20:38,238 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;@139c2f89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:20:38,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:20:38,244 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) [2024-11-19 03:20:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-19 03:20:38,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:38,261 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] [2024-11-19 03:20:38,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:38,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash -902122289, now seen corresponding path program 1 times [2024-11-19 03:20:38,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:38,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357284423] [2024-11-19 03:20:38,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:38,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:39,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:20:39,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:39,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357284423] [2024-11-19 03:20:39,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357284423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:39,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:39,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:39,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277591883] [2024-11-19 03:20:39,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:39,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:39,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:39,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:39,336 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) [2024-11-19 03:20:43,373 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 [] [2024-11-19 03:20:43,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:43,566 INFO L93 Difference]: Finished difference Result 968 states and 1409 transitions. [2024-11-19 03:20:43,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:43,569 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 [2024-11-19 03:20:43,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:43,590 INFO L225 Difference]: With dead ends: 968 [2024-11-19 03:20:43,591 INFO L226 Difference]: Without dead ends: 617 [2024-11-19 03:20:43,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:43,605 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 411 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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 [2024-11-19 03:20:43,606 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] [2024-11-19 03:20:43,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-19 03:20:43,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 617. [2024-11-19 03:20:43,729 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) [2024-11-19 03:20:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 851 transitions. [2024-11-19 03:20:43,741 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 851 transitions. Word has length 36 [2024-11-19 03:20:43,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:43,742 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 851 transitions. [2024-11-19 03:20:43,742 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) [2024-11-19 03:20:43,743 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 851 transitions. [2024-11-19 03:20:43,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-19 03:20:43,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:43,748 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] [2024-11-19 03:20:43,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:20:43,748 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:43,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:43,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2047418947, now seen corresponding path program 1 times [2024-11-19 03:20:43,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:43,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960010902] [2024-11-19 03:20:43,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:43,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 03:20:44,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:44,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960010902] [2024-11-19 03:20:44,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960010902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:44,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:44,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:20:44,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184468320] [2024-11-19 03:20:44,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:44,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:20:44,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:44,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:20:44,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:20:44,516 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) [2024-11-19 03:20:44,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:44,667 INFO L93 Difference]: Finished difference Result 1812 states and 2529 transitions. [2024-11-19 03:20:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:20:44,670 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 [2024-11-19 03:20:44,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:44,683 INFO L225 Difference]: With dead ends: 1812 [2024-11-19 03:20:44,684 INFO L226 Difference]: Without dead ends: 1207 [2024-11-19 03:20:44,687 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 [2024-11-19 03:20:44,690 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 423 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:44,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 1879 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:20:44,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-11-19 03:20:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-11-19 03:20:44,765 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) [2024-11-19 03:20:44,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1678 transitions. [2024-11-19 03:20:44,776 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1678 transitions. Word has length 46 [2024-11-19 03:20:44,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:44,777 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1678 transitions. [2024-11-19 03:20:44,778 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) [2024-11-19 03:20:44,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1678 transitions. [2024-11-19 03:20:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 03:20:44,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:44,791 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] [2024-11-19 03:20:44,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:20:44,791 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:44,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1154664437, now seen corresponding path program 1 times [2024-11-19 03:20:44,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:44,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916418486] [2024-11-19 03:20:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:44,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:45,245 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 03:20:45,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:45,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916418486] [2024-11-19 03:20:45,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916418486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:45,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:45,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:45,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070827401] [2024-11-19 03:20:45,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:45,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:45,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:45,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:45,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:45,248 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) [2024-11-19 03:20:45,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:45,359 INFO L93 Difference]: Finished difference Result 2626 states and 3666 transitions. [2024-11-19 03:20:45,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:45,359 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 [2024-11-19 03:20:45,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:45,369 INFO L225 Difference]: With dead ends: 2626 [2024-11-19 03:20:45,369 INFO L226 Difference]: Without dead ends: 1437 [2024-11-19 03:20:45,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:45,375 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 [2024-11-19 03:20:45,376 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] [2024-11-19 03:20:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-19 03:20:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1428. [2024-11-19 03:20:45,471 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) [2024-11-19 03:20:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1997 transitions. [2024-11-19 03:20:45,482 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1997 transitions. Word has length 84 [2024-11-19 03:20:45,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:45,484 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1997 transitions. [2024-11-19 03:20:45,485 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) [2024-11-19 03:20:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1997 transitions. [2024-11-19 03:20:45,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-19 03:20:45,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:45,492 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] [2024-11-19 03:20:45,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:20:45,493 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:45,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:45,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1862594744, now seen corresponding path program 1 times [2024-11-19 03:20:45,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:45,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512640712] [2024-11-19 03:20:45,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:45,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:46,055 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-19 03:20:46,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:46,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512640712] [2024-11-19 03:20:46,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512640712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:46,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:46,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:46,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502009690] [2024-11-19 03:20:46,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:46,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:46,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:46,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:46,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:46,060 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) [2024-11-19 03:20:50,076 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 [] [2024-11-19 03:20:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:50,221 INFO L93 Difference]: Finished difference Result 3588 states and 5000 transitions. [2024-11-19 03:20:50,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:50,222 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 [2024-11-19 03:20:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:50,236 INFO L225 Difference]: With dead ends: 3588 [2024-11-19 03:20:50,236 INFO L226 Difference]: Without dead ends: 2189 [2024-11-19 03:20:50,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:50,243 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 [2024-11-19 03:20:50,244 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] [2024-11-19 03:20:50,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2024-11-19 03:20:50,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2180. [2024-11-19 03:20:50,331 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) [2024-11-19 03:20:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 2999 transitions. [2024-11-19 03:20:50,346 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 2999 transitions. Word has length 112 [2024-11-19 03:20:50,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:50,346 INFO L471 AbstractCegarLoop]: Abstraction has 2180 states and 2999 transitions. [2024-11-19 03:20:50,347 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) [2024-11-19 03:20:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 2999 transitions. [2024-11-19 03:20:50,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-19 03:20:50,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:50,355 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] [2024-11-19 03:20:50,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:20:50,356 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:50,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:50,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1426053394, now seen corresponding path program 1 times [2024-11-19 03:20:50,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:50,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095383887] [2024-11-19 03:20:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:50,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-19 03:20:51,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:51,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095383887] [2024-11-19 03:20:51,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095383887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:51,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:51,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:20:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928107838] [2024-11-19 03:20:51,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:51,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:20:51,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:51,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:20:51,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:20:51,076 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) [2024-11-19 03:20:51,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:51,241 INFO L93 Difference]: Finished difference Result 4369 states and 6070 transitions. [2024-11-19 03:20:51,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:20:51,242 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 [2024-11-19 03:20:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:51,254 INFO L225 Difference]: With dead ends: 4369 [2024-11-19 03:20:51,255 INFO L226 Difference]: Without dead ends: 2218 [2024-11-19 03:20:51,262 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 [2024-11-19 03:20:51,263 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 [2024-11-19 03:20:51,263 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] [2024-11-19 03:20:51,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2024-11-19 03:20:51,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 2212. [2024-11-19 03:20:51,338 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) [2024-11-19 03:20:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2212 states to 2212 states and 3041 transitions. [2024-11-19 03:20:51,353 INFO L78 Accepts]: Start accepts. Automaton has 2212 states and 3041 transitions. Word has length 112 [2024-11-19 03:20:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:51,354 INFO L471 AbstractCegarLoop]: Abstraction has 2212 states and 3041 transitions. [2024-11-19 03:20:51,354 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) [2024-11-19 03:20:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2212 states and 3041 transitions. [2024-11-19 03:20:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 03:20:51,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:51,359 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] [2024-11-19 03:20:51,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:20:51,359 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:51,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash -673102880, now seen corresponding path program 1 times [2024-11-19 03:20:51,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:51,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107759591] [2024-11-19 03:20:51,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:51,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-19 03:20:52,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:52,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107759591] [2024-11-19 03:20:52,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107759591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:52,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:52,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 03:20:52,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227534831] [2024-11-19 03:20:52,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:52,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 03:20:52,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:52,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 03:20:52,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 03:20:52,275 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) [2024-11-19 03:20:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:52,473 INFO L93 Difference]: Finished difference Result 4451 states and 6158 transitions. [2024-11-19 03:20:52,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 03:20:52,474 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 [2024-11-19 03:20:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:52,489 INFO L225 Difference]: With dead ends: 4451 [2024-11-19 03:20:52,489 INFO L226 Difference]: Without dead ends: 2268 [2024-11-19 03:20:52,498 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 [2024-11-19 03:20:52,498 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 [2024-11-19 03:20:52,499 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] [2024-11-19 03:20:52,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2268 states. [2024-11-19 03:20:52,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2268 to 2244. [2024-11-19 03:20:52,583 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) [2024-11-19 03:20:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3073 transitions. [2024-11-19 03:20:52,669 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3073 transitions. Word has length 119 [2024-11-19 03:20:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:52,670 INFO L471 AbstractCegarLoop]: Abstraction has 2244 states and 3073 transitions. [2024-11-19 03:20:52,670 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) [2024-11-19 03:20:52,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3073 transitions. [2024-11-19 03:20:52,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 03:20:52,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:52,674 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] [2024-11-19 03:20:52,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:20:52,675 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:52,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:52,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1524160586, now seen corresponding path program 1 times [2024-11-19 03:20:52,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:52,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583545587] [2024-11-19 03:20:52,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:52,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:53,110 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-19 03:20:53,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:53,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583545587] [2024-11-19 03:20:53,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583545587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:53,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:53,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:53,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946193346] [2024-11-19 03:20:53,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:53,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:53,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:53,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:53,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:53,113 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) [2024-11-19 03:20:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:53,238 INFO L93 Difference]: Finished difference Result 4467 states and 6142 transitions. [2024-11-19 03:20:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:53,239 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 [2024-11-19 03:20:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:53,256 INFO L225 Difference]: With dead ends: 4467 [2024-11-19 03:20:53,256 INFO L226 Difference]: Without dead ends: 2252 [2024-11-19 03:20:53,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:53,265 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 [2024-11-19 03:20:53,265 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] [2024-11-19 03:20:53,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2024-11-19 03:20:53,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 2252. [2024-11-19 03:20:53,353 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) [2024-11-19 03:20:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3081 transitions. [2024-11-19 03:20:53,366 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3081 transitions. Word has length 145 [2024-11-19 03:20:53,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:53,367 INFO L471 AbstractCegarLoop]: Abstraction has 2252 states and 3081 transitions. [2024-11-19 03:20:53,367 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) [2024-11-19 03:20:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3081 transitions. [2024-11-19 03:20:53,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-19 03:20:53,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:53,371 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] [2024-11-19 03:20:53,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:20:53,372 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:53,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1717326379, now seen corresponding path program 1 times [2024-11-19 03:20:53,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:53,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634058201] [2024-11-19 03:20:53,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:53,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 03:20:54,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:54,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634058201] [2024-11-19 03:20:54,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634058201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:54,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:54,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 03:20:54,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552403916] [2024-11-19 03:20:54,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:54,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:20:54,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:54,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:20:54,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 03:20:54,179 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) [2024-11-19 03:20:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:54,268 INFO L93 Difference]: Finished difference Result 4485 states and 6142 transitions. [2024-11-19 03:20:54,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:20:54,269 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 [2024-11-19 03:20:54,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:54,287 INFO L225 Difference]: With dead ends: 4485 [2024-11-19 03:20:54,287 INFO L226 Difference]: Without dead ends: 2253 [2024-11-19 03:20:54,297 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 [2024-11-19 03:20:54,297 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 [2024-11-19 03:20:54,298 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] [2024-11-19 03:20:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2024-11-19 03:20:54,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 2253. [2024-11-19 03:20:54,404 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) [2024-11-19 03:20:54,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2253 states to 2253 states and 3082 transitions. [2024-11-19 03:20:54,421 INFO L78 Accepts]: Start accepts. Automaton has 2253 states and 3082 transitions. Word has length 125 [2024-11-19 03:20:54,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:54,421 INFO L471 AbstractCegarLoop]: Abstraction has 2253 states and 3082 transitions. [2024-11-19 03:20:54,422 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) [2024-11-19 03:20:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2253 states and 3082 transitions. [2024-11-19 03:20:54,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-19 03:20:54,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:54,427 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] [2024-11-19 03:20:54,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:20:54,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:54,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:54,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1989638912, now seen corresponding path program 1 times [2024-11-19 03:20:54,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:54,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58160757] [2024-11-19 03:20:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:54,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:55,470 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-19 03:20:55,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:55,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58160757] [2024-11-19 03:20:55,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58160757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:20:55,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359352867] [2024-11-19 03:20:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:55,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:20:55,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:20:55,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:20:55,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:20:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:56,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 1512 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 03:20:56,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:20:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-19 03:20:56,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:20:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 03:20:56,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359352867] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 03:20:56,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 03:20:56,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 6] total 10 [2024-11-19 03:20:56,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716657087] [2024-11-19 03:20:56,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:56,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:20:56,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:56,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:20:56,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 03:20:56,847 INFO L87 Difference]: Start difference. First operand 2253 states and 3082 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-19 03:20:56,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:56,928 INFO L93 Difference]: Finished difference Result 4480 states and 6136 transitions. [2024-11-19 03:20:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:20:56,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 126 [2024-11-19 03:20:56,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:56,946 INFO L225 Difference]: With dead ends: 4480 [2024-11-19 03:20:56,946 INFO L226 Difference]: Without dead ends: 2254 [2024-11-19 03:20:56,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 03:20:56,956 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 897 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 [2024-11-19 03:20:56,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 897 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:20:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2024-11-19 03:20:57,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 2254. [2024-11-19 03:20:57,056 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) [2024-11-19 03:20:57,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 3083 transitions. [2024-11-19 03:20:57,077 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 3083 transitions. Word has length 126 [2024-11-19 03:20:57,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:57,078 INFO L471 AbstractCegarLoop]: Abstraction has 2254 states and 3083 transitions. [2024-11-19 03:20:57,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-19 03:20:57,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 3083 transitions. [2024-11-19 03:20:57,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 03:20:57,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:57,084 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] [2024-11-19 03:20:57,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 03:20:57,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:20:57,289 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:57,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:57,290 INFO L85 PathProgramCache]: Analyzing trace with hash 32616106, now seen corresponding path program 1 times [2024-11-19 03:20:57,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:57,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747834579] [2024-11-19 03:20:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:57,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-19 03:20:58,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:58,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747834579] [2024-11-19 03:20:58,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747834579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:20:58,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543317346] [2024-11-19 03:20:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:58,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:20:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:20:58,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:20:58,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 03:20:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:59,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-19 03:20:59,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:20:59,654 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-19 03:20:59,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:20:59,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543317346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:59,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:20:59,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2024-11-19 03:20:59,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024478680] [2024-11-19 03:20:59,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:59,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 03:20:59,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:59,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 03:20:59,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-11-19 03:20:59,657 INFO L87 Difference]: Start difference. First operand 2254 states and 3083 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) [2024-11-19 03:21:00,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:21:00,068 INFO L93 Difference]: Finished difference Result 4835 states and 6718 transitions. [2024-11-19 03:21:00,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 03:21:00,069 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 [2024-11-19 03:21:00,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:21:00,090 INFO L225 Difference]: With dead ends: 4835 [2024-11-19 03:21:00,091 INFO L226 Difference]: Without dead ends: 2612 [2024-11-19 03:21:00,100 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 [2024-11-19 03:21:00,101 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 38 mSDsluCounter, 6984 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 7489 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:21:00,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 7489 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:21:00,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2612 states. [2024-11-19 03:21:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2612 to 2310. [2024-11-19 03:21:00,205 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) [2024-11-19 03:21:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3147 transitions. [2024-11-19 03:21:00,223 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3147 transitions. Word has length 127 [2024-11-19 03:21:00,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:21:00,224 INFO L471 AbstractCegarLoop]: Abstraction has 2310 states and 3147 transitions. [2024-11-19 03:21:00,228 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) [2024-11-19 03:21:00,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3147 transitions. [2024-11-19 03:21:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 03:21:00,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:21:00,235 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] [2024-11-19 03:21:00,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 03:21:00,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 03:21:00,439 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:21:00,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:21:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash -37492681, now seen corresponding path program 1 times [2024-11-19 03:21:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:21:00,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481121504] [2024-11-19 03:21:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:00,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:21:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-19 03:21:01,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:21:01,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481121504] [2024-11-19 03:21:01,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481121504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:21:01,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876793336] [2024-11-19 03:21:01,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:01,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:21:01,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:21:01,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:21:01,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 03:21:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:02,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 1600 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-19 03:21:02,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:21:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-19 03:21:02,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:21:02,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876793336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:21:02,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:21:02,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5] total 19 [2024-11-19 03:21:02,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308262702] [2024-11-19 03:21:02,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:21:02,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 03:21:02,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:21:02,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 03:21:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-11-19 03:21:02,810 INFO L87 Difference]: Start difference. First operand 2310 states and 3147 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) [2024-11-19 03:21:03,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:21:03,233 INFO L93 Difference]: Finished difference Result 4883 states and 6718 transitions. [2024-11-19 03:21:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 03:21:03,234 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 [2024-11-19 03:21:03,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:21:03,253 INFO L225 Difference]: With dead ends: 4883 [2024-11-19 03:21:03,254 INFO L226 Difference]: Without dead ends: 2604 [2024-11-19 03:21:03,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2024-11-19 03:21:03,263 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 34 mSDsluCounter, 6797 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 7288 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:21:03,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 7288 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:21:03,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2024-11-19 03:21:03,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2326. [2024-11-19 03:21:03,357 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) [2024-11-19 03:21:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3163 transitions. [2024-11-19 03:21:03,371 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3163 transitions. Word has length 147 [2024-11-19 03:21:03,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:21:03,371 INFO L471 AbstractCegarLoop]: Abstraction has 2326 states and 3163 transitions. [2024-11-19 03:21:03,372 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) [2024-11-19 03:21:03,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3163 transitions. [2024-11-19 03:21:03,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-19 03:21:03,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:21:03,378 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] [2024-11-19 03:21:03,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 03:21:03,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:21:03,583 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:21:03,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:21:03,584 INFO L85 PathProgramCache]: Analyzing trace with hash 648424792, now seen corresponding path program 1 times [2024-11-19 03:21:03,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:21:03,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541913699] [2024-11-19 03:21:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:03,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:21:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-19 03:21:04,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:21:04,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541913699] [2024-11-19 03:21:04,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541913699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:21:04,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038138767] [2024-11-19 03:21:04,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:04,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:21:04,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:21:04,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:21:04,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 03:21:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:05,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-19 03:21:05,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:21:13,895 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 [2024-11-19 03:21:41,382 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 [2024-11-19 03:21:45,552 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-19 03:21:45,552 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 [2024-11-19 03:21:45,581 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 [2024-11-19 03:21:49,954 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-19 03:21:49,955 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 [2024-11-19 03:21:50,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 03:21:50,268 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 [2024-11-19 03:21:50,412 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-19 03:21:50,412 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:21:50,838 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 [2024-11-19 03:21:51,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038138767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:21:51,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 03:21:51,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 26] total 29 [2024-11-19 03:21:51,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863824513] [2024-11-19 03:21:51,481 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 03:21:51,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-19 03:21:51,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:21:51,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-19 03:21:51,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=996, Unknown=13, NotChecked=0, Total=1122 [2024-11-19 03:21:51,487 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)