./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.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 a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:13:28,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:13:28,741 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:13:28,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:13:28,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:13:28,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:13:28,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:13:28,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:13:28,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:13:28,783 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:13:28,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:13:28,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:13:28,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:13:28,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:13:28,787 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:13:28,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:13:28,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:13:28,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:13:28,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:13:28,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:13:28,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:13:28,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:13:28,790 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:13:28,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:13:28,790 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:13:28,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:13:28,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:13:28,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:13:28,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:13:28,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:13:28,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:13:28,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:13:28,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:13:28,794 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:13:28,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:13:28,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:13:28,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:13:28,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:13:28,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:13:28,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5b351dc48b78577594847e2589a2433da4c3422ed74f69290b3f52d3ba2c2d2 [2024-11-19 03:13:29,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:13:29,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:13:29,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:13:29,092 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:13:29,093 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:13:29,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2024-11-19 03:13:30,566 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:13:30,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:13:30,974 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2024-11-19 03:13:31,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae68abab/0c2f073b3c314ee3ad61b25ce4ef1bda/FLAG0af818121 [2024-11-19 03:13:31,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae68abab/0c2f073b3c314ee3ad61b25ce4ef1bda [2024-11-19 03:13:31,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:13:31,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:13:31,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:13:31,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:13:31,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:13:31,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:31" (1/1) ... [2024-11-19 03:13:31,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2badfa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:31, skipping insertion in model container [2024-11-19 03:13:31,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:13:31" (1/1) ... [2024-11-19 03:13:31,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:13:32,038 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2024-11-19 03:13:32,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:13:32,119 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:13:32,271 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i[106459,106472] [2024-11-19 03:13:32,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:13:32,351 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:13:32,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32 WrapperNode [2024-11-19 03:13:32,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:13:32,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:13:32,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:13:32,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:13:32,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,497 INFO L138 Inliner]: procedures = 129, calls = 755, calls flagged for inlining = 53, calls inlined = 47, statements flattened = 2571 [2024-11-19 03:13:32,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:13:32,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:13:32,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:13:32,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:13:32,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,709 INFO L175 MemorySlicer]: Split 360 memory accesses to 17 slices as follows [2, 42, 1, 2, 8, 2, 19, 16, 1, 1, 24, 7, 6, 49, 121, 51, 8]. 34 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 6]. The 228 writes are split as follows [0, 42, 1, 1, 3, 0, 19, 16, 0, 1, 24, 6, 0, 42, 30, 43, 0]. [2024-11-19 03:13:32,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:13:32,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:13:32,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:13:32,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:13:32,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (1/1) ... [2024-11-19 03:13:32,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:13:32,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:13:32,880 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 03:13:32,890 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 03:13:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-19 03:13:32,937 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-19 03:13:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:13:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:13:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:13:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:13:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:13:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:13:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:13:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-19 03:13:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-19 03:13:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_remove [2024-11-19 03:13:32,941 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_remove [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-19 03:13:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-19 03:13:32,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-19 03:13:32,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-19 03:13:32,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-19 03:13:32,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-19 03:13:32,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-19 03:13:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-19 03:13:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-19 03:13:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-19 03:13:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-19 03:13:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-19 03:13:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:13:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:13:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:13:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:13:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:13:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:13:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:13:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 03:13:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 03:13:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 03:13:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 03:13:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 03:13:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 03:13:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 03:13:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-19 03:13:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-19 03:13:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-19 03:13:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_bin_file [2024-11-19 03:13:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_bin_file [2024-11-19 03:13:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_modify_write_reg [2024-11-19 03:13:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_modify_write_reg [2024-11-19 03:13:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pch_phub_mutex [2024-11-19 03:13:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pch_phub_mutex [2024-11-19 03:13:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:13:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:13:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 03:13:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 03:13:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:13:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:13:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:13:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:13:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:13:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 03:13:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-19 03:13:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-19 03:13:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-19 03:13:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-19 03:13:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-19 03:13:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-19 03:13:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-19 03:13:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:13:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:13:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-19 03:13:32,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-19 03:13:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-19 03:13:32,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-19 03:13:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-11-19 03:13:32,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-11-19 03:13:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:13:32,953 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2024-11-19 03:13:32,955 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2024-11-19 03:13:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:13:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2024-11-19 03:13:32,955 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2024-11-19 03:13:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2024-11-19 03:13:32,955 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2024-11-19 03:13:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:13:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:13:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:13:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:13:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:13:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:13:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:13:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 03:13:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-19 03:13:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-19 03:13:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-19 03:13:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-19 03:13:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-19 03:13:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-19 03:13:32,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-19 03:13:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-19 03:13:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-19 03:13:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:13:32,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:13:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:13:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:13:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:13:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:13:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:13:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:13:32,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 03:13:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-19 03:13:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-19 03:13:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-19 03:13:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-19 03:13:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-19 03:13:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-19 03:13:32,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-19 03:13:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-19 03:13:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-19 03:13:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-19 03:13:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-19 03:13:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-19 03:13:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-19 03:13:32,962 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-11-19 03:13:32,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-11-19 03:13:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2024-11-19 03:13:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2024-11-19 03:13:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-19 03:13:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-19 03:13:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:13:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2024-11-19 03:13:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_pch_phub_mutex [2024-11-19 03:13:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-19 03:13:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-19 03:13:32,963 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-11-19 03:13:32,963 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-11-19 03:13:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-19 03:13:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-19 03:13:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_write_serial_rom [2024-11-19 03:13:32,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_write_serial_rom [2024-11-19 03:13:32,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:13:32,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 03:13:32,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 03:13:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 03:13:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 03:13:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 03:13:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 03:13:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 03:13:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:13:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:13:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2024-11-19 03:13:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2024-11-19 03:13:32,968 INFO L130 BoogieDeclarations]: Found specification of procedure pch_phub_read_serial_rom [2024-11-19 03:13:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_phub_read_serial_rom [2024-11-19 03:13:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2024-11-19 03:13:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2024-11-19 03:13:33,463 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:13:33,465 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:13:46,566 INFO L? ?]: Removed 849 outVars from TransFormulas that were not future-live. [2024-11-19 03:13:46,567 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:13:46,613 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:13:46,613 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 03:13:46,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:46 BoogieIcfgContainer [2024-11-19 03:13:46,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:13:46,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:13:46,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:13:46,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:13:46,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:13:31" (1/3) ... [2024-11-19 03:13:46,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327442c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:13:46, skipping insertion in model container [2024-11-19 03:13:46,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:13:32" (2/3) ... [2024-11-19 03:13:46,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327442c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:13:46, skipping insertion in model container [2024-11-19 03:13:46,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:13:46" (3/3) ... [2024-11-19 03:13:46,623 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--pch_phub.ko-main.cil.out.i [2024-11-19 03:13:46,639 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:13:46,640 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:13:46,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:13:46,753 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;@64a662c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:13:46,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:13:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 852 states, 633 states have (on average 1.3459715639810426) internal successors, (852), 646 states have internal predecessors, (852), 187 states have call successors, (187), 30 states have call predecessors, (187), 30 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2024-11-19 03:13:46,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 03:13:46,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:13:46,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:13:46,776 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:13:46,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:13:46,782 INFO L85 PathProgramCache]: Analyzing trace with hash 572309931, now seen corresponding path program 1 times [2024-11-19 03:13:46,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:13:46,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045745518] [2024-11-19 03:13:46,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:13:46,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:13:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:13:49,250 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 03:13:49,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:13:49,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045745518] [2024-11-19 03:13:49,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045745518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:13:49,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:13:49,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:13:49,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805439582] [2024-11-19 03:13:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:13:49,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:13:49,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:13:49,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:13:49,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:13:49,289 INFO L87 Difference]: Start difference. First operand has 852 states, 633 states have (on average 1.3459715639810426) internal successors, (852), 646 states have internal predecessors, (852), 187 states have call successors, (187), 30 states have call predecessors, (187), 30 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:13:53,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:13:53,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:13:53,756 INFO L93 Difference]: Finished difference Result 2530 states and 3698 transitions. [2024-11-19 03:13:53,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:13:53,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-19 03:13:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:13:53,790 INFO L225 Difference]: With dead ends: 2530 [2024-11-19 03:13:53,790 INFO L226 Difference]: Without dead ends: 1677 [2024-11-19 03:13:53,800 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 03:13:53,803 INFO L432 NwaCegarLoop]: 1217 mSDtfsCounter, 1189 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:13:53,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 2420 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 03:13:53,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2024-11-19 03:13:53,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1673. [2024-11-19 03:13:53,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1245 states have (on average 1.3405622489959839) internal successors, (1669), 1263 states have internal predecessors, (1669), 369 states have call successors, (369), 59 states have call predecessors, (369), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2024-11-19 03:13:53,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2402 transitions. [2024-11-19 03:13:54,000 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2402 transitions. Word has length 15 [2024-11-19 03:13:54,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:13:54,001 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 2402 transitions. [2024-11-19 03:13:54,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:13:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2402 transitions. [2024-11-19 03:13:54,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 03:13:54,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:13:54,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:13:54,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:13:54,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:13:54,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:13:54,007 INFO L85 PathProgramCache]: Analyzing trace with hash 41048853, now seen corresponding path program 1 times [2024-11-19 03:13:54,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:13:54,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994718953] [2024-11-19 03:13:54,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:13:54,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:13:55,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:13:55,610 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 03:13:55,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:13:55,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994718953] [2024-11-19 03:13:55,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994718953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:13:55,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:13:55,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:13:55,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337913626] [2024-11-19 03:13:55,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:13:55,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:13:55,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:13:55,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:13:55,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:13:55,614 INFO L87 Difference]: Start difference. First operand 1673 states and 2402 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:13:55,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:13:55,765 INFO L93 Difference]: Finished difference Result 1691 states and 2422 transitions. [2024-11-19 03:13:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:13:55,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-19 03:13:55,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:13:55,779 INFO L225 Difference]: With dead ends: 1691 [2024-11-19 03:13:55,779 INFO L226 Difference]: Without dead ends: 1682 [2024-11-19 03:13:55,781 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 03:13:55,783 INFO L432 NwaCegarLoop]: 1222 mSDtfsCounter, 1208 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:13:55,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 1232 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:13:55,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-19 03:13:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1673. [2024-11-19 03:13:55,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1245 states have (on average 1.3397590361445784) internal successors, (1668), 1263 states have internal predecessors, (1668), 369 states have call successors, (369), 59 states have call predecessors, (369), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2024-11-19 03:13:55,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2401 transitions. [2024-11-19 03:13:55,869 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2401 transitions. Word has length 18 [2024-11-19 03:13:55,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:13:55,870 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 2401 transitions. [2024-11-19 03:13:55,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:13:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2401 transitions. [2024-11-19 03:13:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 03:13:55,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:13:55,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:13:55,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:13:55,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:13:55,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:13:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash 98307155, now seen corresponding path program 1 times [2024-11-19 03:13:55,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:13:55,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260861049] [2024-11-19 03:13:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:13:55,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:13:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:13:57,613 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 03:13:57,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:13:57,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260861049] [2024-11-19 03:13:57,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260861049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:13:57,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:13:57,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:13:57,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287499247] [2024-11-19 03:13:57,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:13:57,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:13:57,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:13:57,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:13:57,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:13:57,617 INFO L87 Difference]: Start difference. First operand 1673 states and 2401 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:14:01,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:14:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:01,755 INFO L93 Difference]: Finished difference Result 1675 states and 2402 transitions. [2024-11-19 03:14:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:14:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-19 03:14:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:01,765 INFO L225 Difference]: With dead ends: 1675 [2024-11-19 03:14:01,765 INFO L226 Difference]: Without dead ends: 1672 [2024-11-19 03:14:01,767 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 03:14:01,767 INFO L432 NwaCegarLoop]: 1210 mSDtfsCounter, 1196 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:01,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1210 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:14:01,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2024-11-19 03:14:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2024-11-19 03:14:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1245 states have (on average 1.3389558232931726) internal successors, (1667), 1262 states have internal predecessors, (1667), 368 states have call successors, (368), 59 states have call predecessors, (368), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2024-11-19 03:14:01,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2399 transitions. [2024-11-19 03:14:01,869 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2399 transitions. Word has length 18 [2024-11-19 03:14:01,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:01,870 INFO L471 AbstractCegarLoop]: Abstraction has 1672 states and 2399 transitions. [2024-11-19 03:14:01,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:14:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2399 transitions. [2024-11-19 03:14:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 03:14:01,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:01,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:14:01,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:14:01,875 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:01,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:01,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1247811767, now seen corresponding path program 1 times [2024-11-19 03:14:01,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:01,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174563312] [2024-11-19 03:14:01,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:01,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:03,278 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 03:14:03,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:03,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174563312] [2024-11-19 03:14:03,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174563312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:03,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:03,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:14:03,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298394457] [2024-11-19 03:14:03,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:03,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:14:03,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:14:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:14:03,284 INFO L87 Difference]: Start difference. First operand 1672 states and 2399 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:14:07,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:14:07,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:07,444 INFO L93 Difference]: Finished difference Result 1674 states and 2400 transitions. [2024-11-19 03:14:07,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:14:07,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-19 03:14:07,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:07,455 INFO L225 Difference]: With dead ends: 1674 [2024-11-19 03:14:07,456 INFO L226 Difference]: Without dead ends: 1671 [2024-11-19 03:14:07,457 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 03:14:07,460 INFO L432 NwaCegarLoop]: 1208 mSDtfsCounter, 1193 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:07,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1208 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:14:07,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2024-11-19 03:14:07,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2024-11-19 03:14:07,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1245 states have (on average 1.3381526104417671) internal successors, (1666), 1261 states have internal predecessors, (1666), 367 states have call successors, (367), 59 states have call predecessors, (367), 58 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2024-11-19 03:14:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2397 transitions. [2024-11-19 03:14:07,604 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2397 transitions. Word has length 19 [2024-11-19 03:14:07,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:07,604 INFO L471 AbstractCegarLoop]: Abstraction has 1671 states and 2397 transitions. [2024-11-19 03:14:07,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:14:07,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2397 transitions. [2024-11-19 03:14:07,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-19 03:14:07,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:07,608 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] [2024-11-19 03:14:07,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:14:07,608 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:07,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash -27820522, now seen corresponding path program 1 times [2024-11-19 03:14:07,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:07,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087623374] [2024-11-19 03:14:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:07,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:08,972 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 03:14:08,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:08,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087623374] [2024-11-19 03:14:08,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087623374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:08,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:08,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:14:08,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313356031] [2024-11-19 03:14:08,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:08,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:14:08,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:08,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:14:08,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:14:08,974 INFO L87 Difference]: Start difference. First operand 1671 states and 2397 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:14:13,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:14:13,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:13,319 INFO L93 Difference]: Finished difference Result 4973 states and 7153 transitions. [2024-11-19 03:14:13,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:14:13,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-19 03:14:13,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:13,348 INFO L225 Difference]: With dead ends: 4973 [2024-11-19 03:14:13,348 INFO L226 Difference]: Without dead ends: 3299 [2024-11-19 03:14:13,359 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 03:14:13,360 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 1187 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:13,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 2467 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 03:14:13,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-11-19 03:14:13,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3286. [2024-11-19 03:14:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 2454 states have (on average 1.3398533007334963) internal successors, (3288), 2489 states have internal predecessors, (3288), 719 states have call successors, (719), 114 states have call predecessors, (719), 112 states have return successors, (720), 708 states have call predecessors, (720), 712 states have call successors, (720) [2024-11-19 03:14:13,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4727 transitions. [2024-11-19 03:14:13,610 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4727 transitions. Word has length 20 [2024-11-19 03:14:13,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:13,611 INFO L471 AbstractCegarLoop]: Abstraction has 3286 states and 4727 transitions. [2024-11-19 03:14:13,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:14:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4727 transitions. [2024-11-19 03:14:13,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-19 03:14:13,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:13,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:14:13,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:14:13,618 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:13,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:13,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1030728849, now seen corresponding path program 1 times [2024-11-19 03:14:13,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:13,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039101846] [2024-11-19 03:14:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:13,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:14,959 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 03:14:14,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:14,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039101846] [2024-11-19 03:14:14,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039101846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:14,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:14,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:14:14,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590112273] [2024-11-19 03:14:14,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:14,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:14:14,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:14:14,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:14:14,963 INFO L87 Difference]: Start difference. First operand 3286 states and 4727 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:14:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:15,402 INFO L93 Difference]: Finished difference Result 9482 states and 13623 transitions. [2024-11-19 03:14:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:14:15,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-19 03:14:15,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:15,448 INFO L225 Difference]: With dead ends: 9482 [2024-11-19 03:14:15,449 INFO L226 Difference]: Without dead ends: 6199 [2024-11-19 03:14:15,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:14:15,471 INFO L432 NwaCegarLoop]: 1233 mSDtfsCounter, 1048 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:15,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 2424 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 03:14:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6199 states. [2024-11-19 03:14:15,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6199 to 6190. [2024-11-19 03:14:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 4630 states have (on average 1.3373650107991362) internal successors, (6192), 4685 states have internal predecessors, (6192), 1347 states have call successors, (1347), 214 states have call predecessors, (1347), 212 states have return successors, (1348), 1336 states have call predecessors, (1348), 1340 states have call successors, (1348) [2024-11-19 03:14:15,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 8887 transitions. [2024-11-19 03:14:15,879 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 8887 transitions. Word has length 49 [2024-11-19 03:14:15,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:15,879 INFO L471 AbstractCegarLoop]: Abstraction has 6190 states and 8887 transitions. [2024-11-19 03:14:15,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:14:15,880 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 8887 transitions. [2024-11-19 03:14:15,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-19 03:14:15,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:15,887 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 03:14:15,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:14:15,889 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:15,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:15,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1499931713, now seen corresponding path program 1 times [2024-11-19 03:14:15,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:15,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481189999] [2024-11-19 03:14:15,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:15,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:17,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 03:14:17,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:17,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481189999] [2024-11-19 03:14:17,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481189999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:17,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:17,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:14:17,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93852558] [2024-11-19 03:14:17,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:17,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:14:17,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:17,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:14:17,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:14:17,360 INFO L87 Difference]: Start difference. First operand 6190 states and 8887 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:14:21,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:14:22,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:22,008 INFO L93 Difference]: Finished difference Result 15330 states and 22019 transitions. [2024-11-19 03:14:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:14:22,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-11-19 03:14:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:22,086 INFO L225 Difference]: With dead ends: 15330 [2024-11-19 03:14:22,086 INFO L226 Difference]: Without dead ends: 9143 [2024-11-19 03:14:22,127 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 03:14:22,128 INFO L432 NwaCegarLoop]: 2253 mSDtfsCounter, 1059 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 3445 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:22,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 3445 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-19 03:14:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9143 states. [2024-11-19 03:14:22,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9143 to 9134. [2024-11-19 03:14:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9134 states, 6846 states have (on average 1.3374233128834356) internal successors, (9156), 6921 states have internal predecessors, (9156), 1975 states have call successors, (1975), 314 states have call predecessors, (1975), 312 states have return successors, (1976), 1964 states have call predecessors, (1976), 1968 states have call successors, (1976) [2024-11-19 03:14:22,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9134 states to 9134 states and 13107 transitions. [2024-11-19 03:14:22,740 INFO L78 Accepts]: Start accepts. Automaton has 9134 states and 13107 transitions. Word has length 60 [2024-11-19 03:14:22,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:22,742 INFO L471 AbstractCegarLoop]: Abstraction has 9134 states and 13107 transitions. [2024-11-19 03:14:22,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:14:22,742 INFO L276 IsEmpty]: Start isEmpty. Operand 9134 states and 13107 transitions. [2024-11-19 03:14:22,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-19 03:14:22,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:22,755 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 03:14:22,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:14:22,755 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:22,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:22,756 INFO L85 PathProgramCache]: Analyzing trace with hash -674392642, now seen corresponding path program 1 times [2024-11-19 03:14:22,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:22,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783244252] [2024-11-19 03:14:22,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:22,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 03:14:24,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:24,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783244252] [2024-11-19 03:14:24,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783244252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:24,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:24,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 03:14:24,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448841451] [2024-11-19 03:14:24,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:24,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:14:24,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:24,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:14:24,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 03:14:24,622 INFO L87 Difference]: Start difference. First operand 9134 states and 13107 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 03:14:25,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:25,376 INFO L93 Difference]: Finished difference Result 18285 states and 26239 transitions. [2024-11-19 03:14:25,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:14:25,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 72 [2024-11-19 03:14:25,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:25,431 INFO L225 Difference]: With dead ends: 18285 [2024-11-19 03:14:25,432 INFO L226 Difference]: Without dead ends: 9154 [2024-11-19 03:14:25,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:14:25,482 INFO L432 NwaCegarLoop]: 1193 mSDtfsCounter, 1201 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 2369 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:25,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 2369 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:14:25,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9154 states. [2024-11-19 03:14:25,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9154 to 9134. [2024-11-19 03:14:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9134 states, 6846 states have (on average 1.336839030090564) internal successors, (9152), 6921 states have internal predecessors, (9152), 1975 states have call successors, (1975), 314 states have call predecessors, (1975), 312 states have return successors, (1976), 1964 states have call predecessors, (1976), 1968 states have call successors, (1976) [2024-11-19 03:14:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9134 states to 9134 states and 13103 transitions. [2024-11-19 03:14:25,944 INFO L78 Accepts]: Start accepts. Automaton has 9134 states and 13103 transitions. Word has length 72 [2024-11-19 03:14:25,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:25,944 INFO L471 AbstractCegarLoop]: Abstraction has 9134 states and 13103 transitions. [2024-11-19 03:14:25,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 03:14:25,945 INFO L276 IsEmpty]: Start isEmpty. Operand 9134 states and 13103 transitions. [2024-11-19 03:14:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-19 03:14:25,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:25,952 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 03:14:25,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:14:25,952 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:25,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash 208530762, now seen corresponding path program 1 times [2024-11-19 03:14:25,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:25,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832426767] [2024-11-19 03:14:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:25,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:27,441 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 03:14:27,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:27,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832426767] [2024-11-19 03:14:27,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832426767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:27,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:27,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:14:27,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557286824] [2024-11-19 03:14:27,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:27,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:14:27,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:27,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:14:27,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:14:27,444 INFO L87 Difference]: Start difference. First operand 9134 states and 13103 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:14:31,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:14:31,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:31,945 INFO L93 Difference]: Finished difference Result 18267 states and 26204 transitions. [2024-11-19 03:14:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:14:31,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 73 [2024-11-19 03:14:31,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:31,997 INFO L225 Difference]: With dead ends: 18267 [2024-11-19 03:14:31,997 INFO L226 Difference]: Without dead ends: 9136 [2024-11-19 03:14:32,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 03:14:32,034 INFO L432 NwaCegarLoop]: 2294 mSDtfsCounter, 1167 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:32,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 3484 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 03:14:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9136 states. [2024-11-19 03:14:32,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9136 to 9121. [2024-11-19 03:14:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9121 states, 6838 states have (on average 1.3366481427317929) internal successors, (9140), 6914 states have internal predecessors, (9140), 1971 states have call successors, (1971), 312 states have call predecessors, (1971), 311 states have return successors, (1966), 1960 states have call predecessors, (1966), 1962 states have call successors, (1966) [2024-11-19 03:14:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9121 states to 9121 states and 13077 transitions. [2024-11-19 03:14:32,557 INFO L78 Accepts]: Start accepts. Automaton has 9121 states and 13077 transitions. Word has length 73 [2024-11-19 03:14:32,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:32,557 INFO L471 AbstractCegarLoop]: Abstraction has 9121 states and 13077 transitions. [2024-11-19 03:14:32,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:14:32,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9121 states and 13077 transitions. [2024-11-19 03:14:32,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-19 03:14:32,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:32,563 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-19 03:14:32,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 03:14:32,564 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:32,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:32,568 INFO L85 PathProgramCache]: Analyzing trace with hash -635941109, now seen corresponding path program 1 times [2024-11-19 03:14:32,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:32,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545811584] [2024-11-19 03:14:32,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:32,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:34,397 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 03:14:34,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:34,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545811584] [2024-11-19 03:14:34,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545811584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:34,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:34,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 03:14:34,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597404255] [2024-11-19 03:14:34,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:34,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 03:14:34,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:34,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 03:14:34,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:14:34,400 INFO L87 Difference]: Start difference. First operand 9121 states and 13077 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:14:35,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:35,063 INFO L93 Difference]: Finished difference Result 9242 states and 13217 transitions. [2024-11-19 03:14:35,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:14:35,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 73 [2024-11-19 03:14:35,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:35,109 INFO L225 Difference]: With dead ends: 9242 [2024-11-19 03:14:35,109 INFO L226 Difference]: Without dead ends: 9089 [2024-11-19 03:14:35,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:14:35,117 INFO L432 NwaCegarLoop]: 1211 mSDtfsCounter, 0 mSDsluCounter, 4826 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6037 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:35,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6037 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:14:35,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9089 states. [2024-11-19 03:14:35,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9089 to 9089. [2024-11-19 03:14:35,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9089 states, 6816 states have (on average 1.3359741784037558) internal successors, (9106), 6887 states have internal predecessors, (9106), 1961 states have call successors, (1961), 312 states have call predecessors, (1961), 311 states have return successors, (1958), 1954 states have call predecessors, (1958), 1954 states have call successors, (1958) [2024-11-19 03:14:35,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9089 states to 9089 states and 13025 transitions. [2024-11-19 03:14:35,547 INFO L78 Accepts]: Start accepts. Automaton has 9089 states and 13025 transitions. Word has length 73 [2024-11-19 03:14:35,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:35,548 INFO L471 AbstractCegarLoop]: Abstraction has 9089 states and 13025 transitions. [2024-11-19 03:14:35,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 03:14:35,549 INFO L276 IsEmpty]: Start isEmpty. Operand 9089 states and 13025 transitions. [2024-11-19 03:14:35,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 03:14:35,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:35,555 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 03:14:35,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 03:14:35,555 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:35,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:35,556 INFO L85 PathProgramCache]: Analyzing trace with hash -360708066, now seen corresponding path program 1 times [2024-11-19 03:14:35,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:35,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535549412] [2024-11-19 03:14:35,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:35,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 03:14:37,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:37,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535549412] [2024-11-19 03:14:37,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535549412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:37,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:37,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 03:14:37,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136457222] [2024-11-19 03:14:37,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:37,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 03:14:37,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:37,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 03:14:37,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:14:37,586 INFO L87 Difference]: Start difference. First operand 9089 states and 13025 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 03:14:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:38,220 INFO L93 Difference]: Finished difference Result 9137 states and 13068 transitions. [2024-11-19 03:14:38,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:14:38,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 79 [2024-11-19 03:14:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:38,262 INFO L225 Difference]: With dead ends: 9137 [2024-11-19 03:14:38,263 INFO L226 Difference]: Without dead ends: 9034 [2024-11-19 03:14:38,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:14:38,271 INFO L432 NwaCegarLoop]: 1209 mSDtfsCounter, 0 mSDsluCounter, 4821 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6030 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:38,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6030 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:14:38,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9034 states. [2024-11-19 03:14:38,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9034 to 9034. [2024-11-19 03:14:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9034 states, 6778 states have (on average 1.3354971968132192) internal successors, (9052), 6844 states have internal predecessors, (9052), 1944 states have call successors, (1944), 311 states have call predecessors, (1944), 311 states have return successors, (1944), 1942 states have call predecessors, (1944), 1940 states have call successors, (1944) [2024-11-19 03:14:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9034 states to 9034 states and 12940 transitions. [2024-11-19 03:14:38,698 INFO L78 Accepts]: Start accepts. Automaton has 9034 states and 12940 transitions. Word has length 79 [2024-11-19 03:14:38,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:38,698 INFO L471 AbstractCegarLoop]: Abstraction has 9034 states and 12940 transitions. [2024-11-19 03:14:38,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 03:14:38,698 INFO L276 IsEmpty]: Start isEmpty. Operand 9034 states and 12940 transitions. [2024-11-19 03:14:38,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-19 03:14:38,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:38,706 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-19 03:14:38,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 03:14:38,706 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:38,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:38,707 INFO L85 PathProgramCache]: Analyzing trace with hash -969646726, now seen corresponding path program 1 times [2024-11-19 03:14:38,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:38,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722010248] [2024-11-19 03:14:38,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:38,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:40,565 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-19 03:14:40,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:40,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722010248] [2024-11-19 03:14:40,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722010248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:40,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:40,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 03:14:40,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247347790] [2024-11-19 03:14:40,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:40,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 03:14:40,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:40,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 03:14:40,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:14:40,569 INFO L87 Difference]: Start difference. First operand 9034 states and 12940 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 03:14:41,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:41,150 INFO L93 Difference]: Finished difference Result 13462 states and 19289 transitions. [2024-11-19 03:14:41,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:14:41,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2024-11-19 03:14:41,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:41,195 INFO L225 Difference]: With dead ends: 13462 [2024-11-19 03:14:41,196 INFO L226 Difference]: Without dead ends: 9032 [2024-11-19 03:14:41,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:14:41,218 INFO L432 NwaCegarLoop]: 1203 mSDtfsCounter, 0 mSDsluCounter, 4802 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6005 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:41,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6005 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:14:41,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9032 states. [2024-11-19 03:14:41,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9032 to 9032. [2024-11-19 03:14:41,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 6776 states have (on average 1.3353010625737898) internal successors, (9048), 6842 states have internal predecessors, (9048), 1944 states have call successors, (1944), 311 states have call predecessors, (1944), 311 states have return successors, (1944), 1942 states have call predecessors, (1944), 1940 states have call successors, (1944) [2024-11-19 03:14:41,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 12936 transitions. [2024-11-19 03:14:41,778 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 12936 transitions. Word has length 75 [2024-11-19 03:14:41,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:41,779 INFO L471 AbstractCegarLoop]: Abstraction has 9032 states and 12936 transitions. [2024-11-19 03:14:41,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 03:14:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 12936 transitions. [2024-11-19 03:14:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-19 03:14:41,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:14:41,787 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-19 03:14:41,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 03:14:41,787 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:14:41,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:14:41,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1989646818, now seen corresponding path program 1 times [2024-11-19 03:14:41,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:14:41,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952320969] [2024-11-19 03:14:41,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:14:41,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:14:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:14:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-19 03:14:43,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:14:43,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952320969] [2024-11-19 03:14:43,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952320969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:14:43,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:14:43,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 03:14:43,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397437345] [2024-11-19 03:14:43,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:14:43,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 03:14:43,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:14:43,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 03:14:43,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:14:43,546 INFO L87 Difference]: Start difference. First operand 9032 states and 12936 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 03:14:43,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:14:43,981 INFO L93 Difference]: Finished difference Result 9158 states and 13082 transitions. [2024-11-19 03:14:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:14:43,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 77 [2024-11-19 03:14:43,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:14:43,990 INFO L225 Difference]: With dead ends: 9158 [2024-11-19 03:14:43,991 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 03:14:44,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:14:44,015 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 0 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5948 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 03:14:44,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5948 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 03:14:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 03:14:44,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 03:14:44,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 03:14:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 03:14:44,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 77 [2024-11-19 03:14:44,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:14:44,026 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 03:14:44,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 03:14:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 03:14:44,026 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 03:14:44,029 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 03:14:44,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 03:14:44,032 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:14:44,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.