./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 13:52:22,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 13:52:22,265 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 13:52:22,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 13:52:22,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 13:52:22,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 13:52:22,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 13:52:22,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 13:52:22,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 13:52:22,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 13:52:22,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 13:52:22,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 13:52:22,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 13:52:22,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 13:52:22,297 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 13:52:22,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 13:52:22,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 13:52:22,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 13:52:22,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 13:52:22,299 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 13:52:22,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 13:52:22,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 13:52:22,303 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 13:52:22,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 13:52:22,303 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 13:52:22,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 13:52:22,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 13:52:22,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 13:52:22,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 13:52:22,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 13:52:22,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 13:52:22,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 13:52:22,304 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 13:52:22,304 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 13:52:22,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 13:52:22,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 13:52:22,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 13:52:22,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 13:52:22,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 13:52:22,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 [2024-10-24 13:52:22,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 13:52:22,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 13:52:22,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 13:52:22,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 13:52:22,565 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 13:52:22,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2024-10-24 13:52:23,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 13:52:24,206 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 13:52:24,207 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2024-10-24 13:52:24,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfc7315ac/43cacd34406949a6bace6af3e31d8b4c/FLAGd8ab66730 [2024-10-24 13:52:24,429 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfc7315ac/43cacd34406949a6bace6af3e31d8b4c [2024-10-24 13:52:24,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 13:52:24,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 13:52:24,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 13:52:24,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 13:52:24,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 13:52:24,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:52:24" (1/1) ... [2024-10-24 13:52:24,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744d2b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:24, skipping insertion in model container [2024-10-24 13:52:24,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:52:24" (1/1) ... [2024-10-24 13:52:24,516 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 13:52:25,345 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2024-10-24 13:52:25,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 13:52:25,523 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 13:52:25,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [2571] [2024-10-24 13:52:25,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [2579] [2024-10-24 13:52:25,761 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2024-10-24 13:52:25,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 13:52:25,950 INFO L204 MainTranslator]: Completed translation [2024-10-24 13:52:25,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25 WrapperNode [2024-10-24 13:52:25,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 13:52:25,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 13:52:25,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 13:52:25,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 13:52:25,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,187 INFO L138 Inliner]: procedures = 165, calls = 5854, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 7192 [2024-10-24 13:52:26,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 13:52:26,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 13:52:26,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 13:52:26,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 13:52:26,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,779 INFO L175 MemorySlicer]: Split 4946 memory accesses to 11 slices as follows [2, 4314, 4, 3, 10, 1, 6, 84, 497, 2, 23]. 87 percent of accesses are in the largest equivalence class. The 4761 initializations are split as follows [2, 4254, 0, 0, 0, 0, 0, 0, 480, 2, 23]. The 117 writes are split as follows [0, 26, 3, 2, 10, 0, 4, 72, 0, 0, 0]. [2024-10-24 13:52:26,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:26,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:27,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 13:52:27,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 13:52:27,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 13:52:27,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 13:52:27,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (1/1) ... [2024-10-24 13:52:27,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 13:52:27,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 13:52:27,058 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) [2024-10-24 13:52:27,062 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 [2024-10-24 13:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2024-10-24 13:52:27,091 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2024-10-24 13:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-10-24 13:52:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-10-24 13:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2024-10-24 13:52:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2024-10-24 13:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-10-24 13:52:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-10-24 13:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2024-10-24 13:52:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2024-10-24 13:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_remove [2024-10-24 13:52:27,092 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_remove [2024-10-24 13:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2024-10-24 13:52:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-10-24 13:52:27,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 13:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 13:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 13:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-24 13:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-24 13:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-10-24 13:52:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-10-24 13:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2024-10-24 13:52:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2024-10-24 13:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-24 13:52:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-24 13:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-24 13:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-24 13:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-10-24 13:52:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-10-24 13:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-24 13:52:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-24 13:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_probe [2024-10-24 13:52:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_probe [2024-10-24 13:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-10-24 13:52:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-10-24 13:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-10-24 13:52:27,096 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-10-24 13:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2024-10-24 13:52:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2024-10-24 13:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-24 13:52:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-24 13:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2024-10-24 13:52:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2024-10-24 13:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-10-24 13:52:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-10-24 13:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 13:52:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 13:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2024-10-24 13:52:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2024-10-24 13:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 13:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2024-10-24 13:52:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2024-10-24 13:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-10-24 13:52:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-10-24 13:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 13:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 13:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 13:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-24 13:52:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2024-10-24 13:52:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-24 13:52:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-10-24 13:52:27,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-24 13:52:27,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2024-10-24 13:52:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-24 13:52:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-10-24 13:52:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-10-24 13:52:27,102 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 13:52:27,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-10-24 13:52:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 13:52:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2024-10-24 13:52:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2024-10-24 13:52:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-10-24 13:52:27,103 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-10-24 13:52:27,418 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 13:52:27,421 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 13:52:27,587 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-10-24 13:52:38,930 INFO L? ?]: Removed 481 outVars from TransFormulas that were not future-live. [2024-10-24 13:52:38,930 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 13:52:39,190 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 13:52:39,190 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 13:52:39,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:52:39 BoogieIcfgContainer [2024-10-24 13:52:39,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 13:52:39,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 13:52:39,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 13:52:39,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 13:52:39,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:52:24" (1/3) ... [2024-10-24 13:52:39,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759268b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:52:39, skipping insertion in model container [2024-10-24 13:52:39,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:52:25" (2/3) ... [2024-10-24 13:52:39,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759268b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:52:39, skipping insertion in model container [2024-10-24 13:52:39,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:52:39" (3/3) ... [2024-10-24 13:52:39,201 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2024-10-24 13:52:39,214 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 13:52:39,215 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 13:52:39,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 13:52:39,286 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;@28ee833a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 13:52:39,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 13:52:39,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 541 states, 385 states have (on average 1.4987012987012986) internal successors, (577), 398 states have internal predecessors, (577), 122 states have call successors, (122), 33 states have call predecessors, (122), 32 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-10-24 13:52:39,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 13:52:39,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:52:39,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:52:39,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:52:39,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:52:39,306 INFO L85 PathProgramCache]: Analyzing trace with hash 387672643, now seen corresponding path program 1 times [2024-10-24 13:52:39,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:52:39,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106531897] [2024-10-24 13:52:39,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:52:39,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:52:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:40,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:52:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 13:52:40,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:52:40,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106531897] [2024-10-24 13:52:40,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106531897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:52:40,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:52:40,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 13:52:40,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494127702] [2024-10-24 13:52:40,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:52:40,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 13:52:40,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:52:40,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 13:52:40,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 13:52:40,892 INFO L87 Difference]: Start difference. First operand has 541 states, 385 states have (on average 1.4987012987012986) internal successors, (577), 398 states have internal predecessors, (577), 122 states have call successors, (122), 33 states have call predecessors, (122), 32 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 13:52:41,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:52:41,385 INFO L93 Difference]: Finished difference Result 1541 states and 2370 transitions. [2024-10-24 13:52:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 13:52:41,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-10-24 13:52:41,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:52:41,402 INFO L225 Difference]: With dead ends: 1541 [2024-10-24 13:52:41,402 INFO L226 Difference]: Without dead ends: 989 [2024-10-24 13:52:41,410 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 [2024-10-24 13:52:41,413 INFO L432 NwaCegarLoop]: 1121 mSDtfsCounter, 781 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 13:52:41,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1773 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 13:52:41,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2024-10-24 13:52:41,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 985. [2024-10-24 13:52:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 709 states have (on average 1.4809590973201692) internal successors, (1050), 719 states have internal predecessors, (1050), 214 states have call successors, (214), 62 states have call predecessors, (214), 61 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2024-10-24 13:52:41,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1473 transitions. [2024-10-24 13:52:41,527 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1473 transitions. Word has length 15 [2024-10-24 13:52:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:52:41,527 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1473 transitions. [2024-10-24 13:52:41,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 13:52:41,528 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1473 transitions. [2024-10-24 13:52:41,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-24 13:52:41,529 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:52:41,529 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] [2024-10-24 13:52:41,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 13:52:41,530 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:52:41,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:52:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash 310127521, now seen corresponding path program 1 times [2024-10-24 13:52:41,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:52:41,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352422534] [2024-10-24 13:52:41,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:52:41,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:52:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:42,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-24 13:52:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 13:52:42,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:52:42,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352422534] [2024-10-24 13:52:42,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352422534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:52:42,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:52:42,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 13:52:42,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379174836] [2024-10-24 13:52:42,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:52:42,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 13:52:42,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:52:42,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 13:52:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 13:52:42,282 INFO L87 Difference]: Start difference. First operand 985 states and 1473 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 13:52:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:52:42,685 INFO L93 Difference]: Finished difference Result 2769 states and 4094 transitions. [2024-10-24 13:52:42,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 13:52:42,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-10-24 13:52:42,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:52:42,694 INFO L225 Difference]: With dead ends: 2769 [2024-10-24 13:52:42,695 INFO L226 Difference]: Without dead ends: 1785 [2024-10-24 13:52:42,698 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 [2024-10-24 13:52:42,699 INFO L432 NwaCegarLoop]: 1007 mSDtfsCounter, 632 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 13:52:42,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1695 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 13:52:42,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-10-24 13:52:42,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1770. [2024-10-24 13:52:42,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1259 states have (on average 1.4447974583002383) internal successors, (1819), 1275 states have internal predecessors, (1819), 395 states have call successors, (395), 116 states have call predecessors, (395), 115 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390) [2024-10-24 13:52:42,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2604 transitions. [2024-10-24 13:52:42,793 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2604 transitions. Word has length 20 [2024-10-24 13:52:42,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:52:42,793 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2604 transitions. [2024-10-24 13:52:42,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 13:52:42,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2604 transitions. [2024-10-24 13:52:42,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 13:52:42,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:52:42,797 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] [2024-10-24 13:52:42,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 13:52:42,797 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:52:42,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:52:42,798 INFO L85 PathProgramCache]: Analyzing trace with hash 32773133, now seen corresponding path program 1 times [2024-10-24 13:52:42,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:52:42,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297703858] [2024-10-24 13:52:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:52:42,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:52:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:43,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:52:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:43,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 13:52:43,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:52:43,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297703858] [2024-10-24 13:52:43,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297703858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:52:43,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:52:43,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:52:43,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86447368] [2024-10-24 13:52:43,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:52:43,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:52:43,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:52:43,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:52:43,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:52:43,452 INFO L87 Difference]: Start difference. First operand 1770 states and 2604 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 13:52:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:52:44,379 INFO L93 Difference]: Finished difference Result 1852 states and 2747 transitions. [2024-10-24 13:52:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:52:44,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2024-10-24 13:52:44,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:52:44,390 INFO L225 Difference]: With dead ends: 1852 [2024-10-24 13:52:44,390 INFO L226 Difference]: Without dead ends: 1849 [2024-10-24 13:52:44,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:52:44,392 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 781 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 13:52:44,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1062 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 13:52:44,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2024-10-24 13:52:44,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1769. [2024-10-24 13:52:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1259 states have (on average 1.4440031771247022) internal successors, (1818), 1274 states have internal predecessors, (1818), 394 states have call successors, (394), 116 states have call predecessors, (394), 115 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390) [2024-10-24 13:52:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2602 transitions. [2024-10-24 13:52:44,451 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2602 transitions. Word has length 27 [2024-10-24 13:52:44,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:52:44,451 INFO L471 AbstractCegarLoop]: Abstraction has 1769 states and 2602 transitions. [2024-10-24 13:52:44,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 13:52:44,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2602 transitions. [2024-10-24 13:52:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-24 13:52:44,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:52:44,453 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] [2024-10-24 13:52:44,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 13:52:44,453 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:52:44,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:52:44,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1015849861, now seen corresponding path program 1 times [2024-10-24 13:52:44,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:52:44,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105125212] [2024-10-24 13:52:44,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:52:44,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:52:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:44,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:52:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:45,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 13:52:45,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:52:45,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105125212] [2024-10-24 13:52:45,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105125212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:52:45,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:52:45,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:52:45,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072443234] [2024-10-24 13:52:45,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:52:45,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:52:45,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:52:45,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:52:45,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:52:45,008 INFO L87 Difference]: Start difference. First operand 1769 states and 2602 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 13:52:45,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:52:45,786 INFO L93 Difference]: Finished difference Result 1851 states and 2745 transitions. [2024-10-24 13:52:45,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:52:45,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-10-24 13:52:45,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:52:45,795 INFO L225 Difference]: With dead ends: 1851 [2024-10-24 13:52:45,795 INFO L226 Difference]: Without dead ends: 1848 [2024-10-24 13:52:45,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:52:45,797 INFO L432 NwaCegarLoop]: 639 mSDtfsCounter, 778 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:52:45,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1059 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 13:52:45,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2024-10-24 13:52:45,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1768. [2024-10-24 13:52:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1768 states, 1259 states have (on average 1.443208895949166) internal successors, (1817), 1273 states have internal predecessors, (1817), 393 states have call successors, (393), 116 states have call predecessors, (393), 115 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390) [2024-10-24 13:52:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2600 transitions. [2024-10-24 13:52:45,859 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2600 transitions. Word has length 28 [2024-10-24 13:52:45,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:52:45,860 INFO L471 AbstractCegarLoop]: Abstraction has 1768 states and 2600 transitions. [2024-10-24 13:52:45,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 13:52:45,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2600 transitions. [2024-10-24 13:52:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-24 13:52:45,861 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:52:45,861 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] [2024-10-24 13:52:45,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 13:52:45,861 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:52:45,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:52:45,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1426462224, now seen corresponding path program 1 times [2024-10-24 13:52:45,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:52:45,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697477571] [2024-10-24 13:52:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:52:45,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:52:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:46,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:52:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:46,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 13:52:46,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:52:46,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697477571] [2024-10-24 13:52:46,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697477571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:52:46,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:52:46,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:52:46,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136205416] [2024-10-24 13:52:46,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:52:46,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:52:46,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:52:46,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:52:46,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:52:46,564 INFO L87 Difference]: Start difference. First operand 1768 states and 2600 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 13:52:48,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:52:48,045 INFO L93 Difference]: Finished difference Result 5008 states and 7416 transitions. [2024-10-24 13:52:48,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 13:52:48,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-10-24 13:52:48,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:52:48,064 INFO L225 Difference]: With dead ends: 5008 [2024-10-24 13:52:48,065 INFO L226 Difference]: Without dead ends: 3233 [2024-10-24 13:52:48,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 13:52:48,074 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 786 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 13:52:48,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 1564 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 13:52:48,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2024-10-24 13:52:48,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3134. [2024-10-24 13:52:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 2229 states have (on average 1.4378645132346344) internal successors, (3205), 2266 states have internal predecessors, (3205), 709 states have call successors, (709), 209 states have call predecessors, (709), 195 states have return successors, (703), 682 states have call predecessors, (703), 699 states have call successors, (703) [2024-10-24 13:52:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 4617 transitions. [2024-10-24 13:52:48,238 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 4617 transitions. Word has length 29 [2024-10-24 13:52:48,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:52:48,239 INFO L471 AbstractCegarLoop]: Abstraction has 3134 states and 4617 transitions. [2024-10-24 13:52:48,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 13:52:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 4617 transitions. [2024-10-24 13:52:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 13:52:48,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:52:48,243 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] [2024-10-24 13:52:48,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 13:52:48,244 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:52:48,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:52:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash -319789659, now seen corresponding path program 1 times [2024-10-24 13:52:48,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:52:48,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980376407] [2024-10-24 13:52:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:52:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:52:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:49,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:52:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:49,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:49,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 13:52:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:49,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:49,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:52:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:49,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 13:52:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 13:52:49,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:52:49,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980376407] [2024-10-24 13:52:49,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980376407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:52:49,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:52:49,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 13:52:49,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583050847] [2024-10-24 13:52:49,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:52:49,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 13:52:49,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:52:49,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 13:52:49,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:52:49,875 INFO L87 Difference]: Start difference. First operand 3134 states and 4617 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 13:52:54,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:52:54,145 INFO L93 Difference]: Finished difference Result 7334 states and 10761 transitions. [2024-10-24 13:52:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 13:52:54,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-10-24 13:52:54,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:52:54,167 INFO L225 Difference]: With dead ends: 7334 [2024-10-24 13:52:54,168 INFO L226 Difference]: Without dead ends: 4195 [2024-10-24 13:52:54,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-24 13:52:54,178 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 902 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 3639 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 3921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 3639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-24 13:52:54,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 3280 Invalid, 3921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 3639 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-24 13:52:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4195 states. [2024-10-24 13:52:54,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4195 to 3999. [2024-10-24 13:52:54,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3999 states, 2814 states have (on average 1.4232409381663114) internal successors, (4005), 2873 states have internal predecessors, (4005), 916 states have call successors, (916), 278 states have call predecessors, (916), 268 states have return successors, (914), 877 states have call predecessors, (914), 906 states have call successors, (914) [2024-10-24 13:52:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3999 states to 3999 states and 5835 transitions. [2024-10-24 13:52:54,380 INFO L78 Accepts]: Start accepts. Automaton has 3999 states and 5835 transitions. Word has length 56 [2024-10-24 13:52:54,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:52:54,380 INFO L471 AbstractCegarLoop]: Abstraction has 3999 states and 5835 transitions. [2024-10-24 13:52:54,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 13:52:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3999 states and 5835 transitions. [2024-10-24 13:52:54,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-24 13:52:54,383 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:52:54,383 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:52:54,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 13:52:54,383 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:52:54,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:52:54,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1204714190, now seen corresponding path program 1 times [2024-10-24 13:52:54,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:52:54,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367472239] [2024-10-24 13:52:54,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:52:54,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:52:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:54,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:52:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:54,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 13:52:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:54,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:52:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:55,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:55,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 13:52:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:55,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:55,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 13:52:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:55,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 13:52:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:55,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 13:52:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 13:52:55,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:52:55,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367472239] [2024-10-24 13:52:55,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367472239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:52:55,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:52:55,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:52:55,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707247246] [2024-10-24 13:52:55,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:52:55,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:52:55,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:52:55,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:52:55,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:52:55,057 INFO L87 Difference]: Start difference. First operand 3999 states and 5835 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 13:52:57,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:52:57,268 INFO L93 Difference]: Finished difference Result 8844 states and 12880 transitions. [2024-10-24 13:52:57,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 13:52:57,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2024-10-24 13:52:57,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:52:57,289 INFO L225 Difference]: With dead ends: 8844 [2024-10-24 13:52:57,290 INFO L226 Difference]: Without dead ends: 4846 [2024-10-24 13:52:57,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-24 13:52:57,301 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 825 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 13:52:57,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1713 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 13:52:57,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4846 states. [2024-10-24 13:52:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4846 to 4635. [2024-10-24 13:52:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 3324 states have (on average 1.4455475330926595) internal successors, (4805), 3395 states have internal predecessors, (4805), 961 states have call successors, (961), 365 states have call predecessors, (961), 349 states have return successors, (953), 898 states have call predecessors, (953), 945 states have call successors, (953) [2024-10-24 13:52:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 6719 transitions. [2024-10-24 13:52:57,553 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 6719 transitions. Word has length 73 [2024-10-24 13:52:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:52:57,554 INFO L471 AbstractCegarLoop]: Abstraction has 4635 states and 6719 transitions. [2024-10-24 13:52:57,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 13:52:57,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 6719 transitions. [2024-10-24 13:52:57,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 13:52:57,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:52:57,556 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:52:57,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 13:52:57,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:52:57,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:52:57,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1744330160, now seen corresponding path program 1 times [2024-10-24 13:52:57,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:52:57,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927186013] [2024-10-24 13:52:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:52:57,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:52:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:52:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:52:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:52:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:52:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:52:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:52:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 13:52:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:52:58,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:52:58,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:52:58,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927186013] [2024-10-24 13:52:58,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927186013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:52:58,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:52:58,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:52:58,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7560088] [2024-10-24 13:52:58,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:52:58,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:52:58,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:52:58,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:52:58,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:52:58,389 INFO L87 Difference]: Start difference. First operand 4635 states and 6719 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 13:53:01,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:53:01,549 INFO L93 Difference]: Finished difference Result 11789 states and 17200 transitions. [2024-10-24 13:53:01,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 13:53:01,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 74 [2024-10-24 13:53:01,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:53:01,583 INFO L225 Difference]: With dead ends: 11789 [2024-10-24 13:53:01,587 INFO L226 Difference]: Without dead ends: 7170 [2024-10-24 13:53:01,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 13:53:01,599 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 1025 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:53:01,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 1848 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 13:53:01,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7170 states. [2024-10-24 13:53:01,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 6921. [2024-10-24 13:53:01,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6921 states, 5021 states have (on average 1.428002389962159) internal successors, (7170), 5116 states have internal predecessors, (7170), 1391 states have call successors, (1391), 526 states have call predecessors, (1391), 508 states have return successors, (1387), 1314 states have call predecessors, (1387), 1375 states have call successors, (1387) [2024-10-24 13:53:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6921 states to 6921 states and 9948 transitions. [2024-10-24 13:53:01,906 INFO L78 Accepts]: Start accepts. Automaton has 6921 states and 9948 transitions. Word has length 74 [2024-10-24 13:53:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:53:01,906 INFO L471 AbstractCegarLoop]: Abstraction has 6921 states and 9948 transitions. [2024-10-24 13:53:01,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-24 13:53:01,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6921 states and 9948 transitions. [2024-10-24 13:53:01,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 13:53:01,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:53:01,910 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:53:01,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 13:53:01,910 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:53:01,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:53:01,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1707882728, now seen corresponding path program 1 times [2024-10-24 13:53:01,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:53:01,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274732738] [2024-10-24 13:53:01,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:01,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:53:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:53:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:53:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:53:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 13:53:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-24 13:53:02,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:53:02,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274732738] [2024-10-24 13:53:02,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274732738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:53:02,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:53:02,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:53:02,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336789584] [2024-10-24 13:53:02,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:53:02,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:53:02,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:53:02,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:53:02,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:53:02,576 INFO L87 Difference]: Start difference. First operand 6921 states and 9948 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 13:53:05,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:53:05,917 INFO L93 Difference]: Finished difference Result 16447 states and 23786 transitions. [2024-10-24 13:53:05,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 13:53:05,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 94 [2024-10-24 13:53:05,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:53:05,962 INFO L225 Difference]: With dead ends: 16447 [2024-10-24 13:53:05,962 INFO L226 Difference]: Without dead ends: 9542 [2024-10-24 13:53:05,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 13:53:05,984 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 1097 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 2630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:53:05,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 1851 Invalid, 2630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-24 13:53:05,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9542 states. [2024-10-24 13:53:06,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9542 to 9208. [2024-10-24 13:53:06,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 6720 states have (on average 1.4191964285714285) internal successors, (9537), 6836 states have internal predecessors, (9537), 1817 states have call successors, (1817), 689 states have call predecessors, (1817), 670 states have return successors, (1820), 1730 states have call predecessors, (1820), 1804 states have call successors, (1820) [2024-10-24 13:53:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 13174 transitions. [2024-10-24 13:53:06,355 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 13174 transitions. Word has length 94 [2024-10-24 13:53:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:53:06,355 INFO L471 AbstractCegarLoop]: Abstraction has 9208 states and 13174 transitions. [2024-10-24 13:53:06,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 13:53:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 13174 transitions. [2024-10-24 13:53:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-24 13:53:06,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:53:06,362 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:53:06,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 13:53:06,362 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:53:06,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:53:06,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1081903236, now seen corresponding path program 1 times [2024-10-24 13:53:06,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:53:06,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274933962] [2024-10-24 13:53:06,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:06,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:53:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:53:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:53:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 13:53:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 13:53:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 13:53:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 13:53:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 13:53:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 13:53:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 13:53:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:53:07,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:53:07,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274933962] [2024-10-24 13:53:07,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274933962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:53:07,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:53:07,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 13:53:07,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802564177] [2024-10-24 13:53:07,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:53:07,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:53:07,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:53:07,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:53:07,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:53:07,221 INFO L87 Difference]: Start difference. First operand 9208 states and 13174 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 13:53:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:53:09,855 INFO L93 Difference]: Finished difference Result 14224 states and 20296 transitions. [2024-10-24 13:53:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 13:53:09,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-10-24 13:53:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:53:09,877 INFO L225 Difference]: With dead ends: 14224 [2024-10-24 13:53:09,877 INFO L226 Difference]: Without dead ends: 5032 [2024-10-24 13:53:09,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-10-24 13:53:09,900 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 1243 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 740 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 740 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-24 13:53:09,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1432 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [740 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-24 13:53:09,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5032 states. [2024-10-24 13:53:10,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5032 to 3753. [2024-10-24 13:53:10,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 2784 states have (on average 1.4342672413793103) internal successors, (3993), 2826 states have internal predecessors, (3993), 727 states have call successors, (727), 252 states have call predecessors, (727), 241 states have return successors, (725), 698 states have call predecessors, (725), 717 states have call successors, (725) [2024-10-24 13:53:10,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5445 transitions. [2024-10-24 13:53:10,063 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5445 transitions. Word has length 114 [2024-10-24 13:53:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:53:10,063 INFO L471 AbstractCegarLoop]: Abstraction has 3753 states and 5445 transitions. [2024-10-24 13:53:10,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 13:53:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5445 transitions. [2024-10-24 13:53:10,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 13:53:10,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:53:10,066 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:53:10,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 13:53:10,067 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:53:10,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:53:10,067 INFO L85 PathProgramCache]: Analyzing trace with hash 848125200, now seen corresponding path program 1 times [2024-10-24 13:53:10,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:53:10,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515380775] [2024-10-24 13:53:10,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:10,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:53:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:53:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:53:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:53:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 13:53:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:53:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 13:53:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-24 13:53:10,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:53:10,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515380775] [2024-10-24 13:53:10,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515380775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:53:10,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:53:10,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 13:53:10,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361110891] [2024-10-24 13:53:10,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:53:10,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 13:53:10,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:53:10,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 13:53:10,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:53:10,762 INFO L87 Difference]: Start difference. First operand 3753 states and 5445 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 13:53:14,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:53:14,765 INFO L93 Difference]: Finished difference Result 8851 states and 12878 transitions. [2024-10-24 13:53:14,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 13:53:14,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 123 [2024-10-24 13:53:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:53:14,791 INFO L225 Difference]: With dead ends: 8851 [2024-10-24 13:53:14,792 INFO L226 Difference]: Without dead ends: 5114 [2024-10-24 13:53:14,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-10-24 13:53:14,802 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 1162 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 2822 mSolverCounterSat, 702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 3524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 702 IncrementalHoareTripleChecker+Valid, 2822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-24 13:53:14,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 2312 Invalid, 3524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [702 Valid, 2822 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-24 13:53:14,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5114 states. [2024-10-24 13:53:14,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5114 to 4582. [2024-10-24 13:53:14,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4582 states, 3421 states have (on average 1.4308681672025723) internal successors, (4895), 3470 states have internal predecessors, (4895), 876 states have call successors, (876), 296 states have call predecessors, (876), 284 states have return successors, (876), 845 states have call predecessors, (876), 866 states have call successors, (876) [2024-10-24 13:53:14,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 6647 transitions. [2024-10-24 13:53:14,998 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 6647 transitions. Word has length 123 [2024-10-24 13:53:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:53:15,000 INFO L471 AbstractCegarLoop]: Abstraction has 4582 states and 6647 transitions. [2024-10-24 13:53:15,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 13:53:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 6647 transitions. [2024-10-24 13:53:15,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 13:53:15,004 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:53:15,004 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:53:15,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 13:53:15,005 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:53:15,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:53:15,005 INFO L85 PathProgramCache]: Analyzing trace with hash -58403422, now seen corresponding path program 1 times [2024-10-24 13:53:15,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:53:15,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423797812] [2024-10-24 13:53:15,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:15,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:53:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:53:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:53:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:53:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 13:53:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:53:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 13:53:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 13:53:15,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:53:15,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423797812] [2024-10-24 13:53:15,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423797812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:53:15,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:53:15,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 13:53:15,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612094396] [2024-10-24 13:53:15,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:53:15,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 13:53:15,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:53:15,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 13:53:15,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:53:15,770 INFO L87 Difference]: Start difference. First operand 4582 states and 6647 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 13:53:19,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:53:19,651 INFO L93 Difference]: Finished difference Result 10534 states and 15323 transitions. [2024-10-24 13:53:19,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 13:53:19,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 124 [2024-10-24 13:53:19,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:53:19,686 INFO L225 Difference]: With dead ends: 10534 [2024-10-24 13:53:19,689 INFO L226 Difference]: Without dead ends: 5968 [2024-10-24 13:53:19,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-10-24 13:53:19,715 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 1259 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 3217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-24 13:53:19,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 2298 Invalid, 3217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [843 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-24 13:53:19,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5968 states. [2024-10-24 13:53:20,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5968 to 5411. [2024-10-24 13:53:20,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 4058 states have (on average 1.4285362247412519) internal successors, (5797), 4114 states have internal predecessors, (5797), 1025 states have call successors, (1025), 340 states have call predecessors, (1025), 327 states have return successors, (1027), 992 states have call predecessors, (1027), 1015 states have call successors, (1027) [2024-10-24 13:53:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 7849 transitions. [2024-10-24 13:53:20,159 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 7849 transitions. Word has length 124 [2024-10-24 13:53:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:53:20,160 INFO L471 AbstractCegarLoop]: Abstraction has 5411 states and 7849 transitions. [2024-10-24 13:53:20,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 13:53:20,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 7849 transitions. [2024-10-24 13:53:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 13:53:20,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:53:20,163 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:53:20,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 13:53:20,164 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:53:20,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:53:20,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1968149431, now seen corresponding path program 1 times [2024-10-24 13:53:20,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:53:20,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397075479] [2024-10-24 13:53:20,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:20,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:53:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:53:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:53:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:53:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 13:53:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:53:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 13:53:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 13:53:21,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:53:21,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397075479] [2024-10-24 13:53:21,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397075479] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 13:53:21,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422194037] [2024-10-24 13:53:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:21,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 13:53:21,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 13:53:21,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 13:53:21,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 13:53:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:22,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 13530 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 13:53:22,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 13:53:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 13:53:23,029 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 13:53:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422194037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:53:23,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 13:53:23,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-24 13:53:23,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051710978] [2024-10-24 13:53:23,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:53:23,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:53:23,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:53:23,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:53:23,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-24 13:53:23,030 INFO L87 Difference]: Start difference. First operand 5411 states and 7849 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 13:53:24,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:53:24,207 INFO L93 Difference]: Finished difference Result 16204 states and 23507 transitions. [2024-10-24 13:53:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:53:24,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 120 [2024-10-24 13:53:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:53:24,326 INFO L225 Difference]: With dead ends: 16204 [2024-10-24 13:53:24,327 INFO L226 Difference]: Without dead ends: 16193 [2024-10-24 13:53:24,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-24 13:53:24,332 INFO L432 NwaCegarLoop]: 1356 mSDtfsCounter, 1477 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:53:24,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 2657 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 13:53:24,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16193 states. [2024-10-24 13:53:24,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16193 to 16149. [2024-10-24 13:53:24,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16149 states, 12114 states have (on average 1.4288426613835232) internal successors, (17309), 12274 states have internal predecessors, (17309), 3057 states have call successors, (3057), 1010 states have call predecessors, (3057), 977 states have return successors, (3077), 2972 states have call predecessors, (3077), 3041 states have call successors, (3077) [2024-10-24 13:53:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16149 states to 16149 states and 23443 transitions. [2024-10-24 13:53:24,973 INFO L78 Accepts]: Start accepts. Automaton has 16149 states and 23443 transitions. Word has length 120 [2024-10-24 13:53:24,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:53:24,974 INFO L471 AbstractCegarLoop]: Abstraction has 16149 states and 23443 transitions. [2024-10-24 13:53:24,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-24 13:53:24,974 INFO L276 IsEmpty]: Start isEmpty. Operand 16149 states and 23443 transitions. [2024-10-24 13:53:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 13:53:24,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:53:24,979 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:53:25,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 13:53:25,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-24 13:53:25,181 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:53:25,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:53:25,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1714148683, now seen corresponding path program 1 times [2024-10-24 13:53:25,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:53:25,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782972548] [2024-10-24 13:53:25,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:25,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:53:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:25,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:53:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:25,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:25,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:53:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:53:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 13:53:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:53:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 13:53:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 13:53:26,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:53:26,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782972548] [2024-10-24 13:53:26,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782972548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:53:26,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:53:26,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 13:53:26,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942418597] [2024-10-24 13:53:26,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:53:26,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 13:53:26,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:53:26,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 13:53:26,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:53:26,045 INFO L87 Difference]: Start difference. First operand 16149 states and 23443 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 13:53:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:53:31,173 INFO L93 Difference]: Finished difference Result 36485 states and 53108 transitions. [2024-10-24 13:53:31,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 13:53:31,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2024-10-24 13:53:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:53:31,259 INFO L225 Difference]: With dead ends: 36485 [2024-10-24 13:53:31,259 INFO L226 Difference]: Without dead ends: 20352 [2024-10-24 13:53:31,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-10-24 13:53:31,302 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 1061 mSDsluCounter, 2118 mSDsCounter, 0 mSdLazyCounter, 2965 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 3535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 2965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-24 13:53:31,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2729 Invalid, 3535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 2965 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-24 13:53:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20352 states. [2024-10-24 13:53:32,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20352 to 18636. [2024-10-24 13:53:32,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18636 states, 14025 states have (on average 1.426951871657754) internal successors, (20013), 14206 states have internal predecessors, (20013), 3504 states have call successors, (3504), 1142 states have call predecessors, (3504), 1106 states have return successors, (3530), 3413 states have call predecessors, (3530), 3488 states have call successors, (3530) [2024-10-24 13:53:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18636 states to 18636 states and 27047 transitions. [2024-10-24 13:53:32,228 INFO L78 Accepts]: Start accepts. Automaton has 18636 states and 27047 transitions. Word has length 122 [2024-10-24 13:53:32,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:53:32,229 INFO L471 AbstractCegarLoop]: Abstraction has 18636 states and 27047 transitions. [2024-10-24 13:53:32,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 13:53:32,229 INFO L276 IsEmpty]: Start isEmpty. Operand 18636 states and 27047 transitions. [2024-10-24 13:53:32,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 13:53:32,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:53:32,236 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:53:32,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 13:53:32,236 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:53:32,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:53:32,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1489850518, now seen corresponding path program 1 times [2024-10-24 13:53:32,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:53:32,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708413584] [2024-10-24 13:53:32,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:32,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:53:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:53:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:53:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:53:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 13:53:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:32,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 13:53:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:33,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 13:53:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:33,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:33,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 13:53:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:33,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:33,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 13:53:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:33,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 13:53:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:33,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 13:53:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 13:53:33,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:53:33,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708413584] [2024-10-24 13:53:33,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708413584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:53:33,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:53:33,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 13:53:33,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437512794] [2024-10-24 13:53:33,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:53:33,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:53:33,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:53:33,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:53:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:53:33,042 INFO L87 Difference]: Start difference. First operand 18636 states and 27047 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 13:53:35,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:53:35,908 INFO L93 Difference]: Finished difference Result 37997 states and 55357 transitions. [2024-10-24 13:53:35,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 13:53:35,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2024-10-24 13:53:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:53:36,018 INFO L225 Difference]: With dead ends: 37997 [2024-10-24 13:53:36,018 INFO L226 Difference]: Without dead ends: 19377 [2024-10-24 13:53:36,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-24 13:53:36,071 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 716 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-24 13:53:36,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1486 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [676 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-24 13:53:36,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19377 states. [2024-10-24 13:53:37,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19377 to 18657. [2024-10-24 13:53:37,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18657 states, 14046 states have (on average 1.4263135412217) internal successors, (20034), 14227 states have internal predecessors, (20034), 3504 states have call successors, (3504), 1142 states have call predecessors, (3504), 1106 states have return successors, (3530), 3413 states have call predecessors, (3530), 3488 states have call successors, (3530) [2024-10-24 13:53:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18657 states to 18657 states and 27068 transitions. [2024-10-24 13:53:37,419 INFO L78 Accepts]: Start accepts. Automaton has 18657 states and 27068 transitions. Word has length 128 [2024-10-24 13:53:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:53:37,419 INFO L471 AbstractCegarLoop]: Abstraction has 18657 states and 27068 transitions. [2024-10-24 13:53:37,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-10-24 13:53:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 18657 states and 27068 transitions. [2024-10-24 13:53:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 13:53:37,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:53:37,433 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:53:37,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 13:53:37,433 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:53:37,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:53:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash 680503892, now seen corresponding path program 1 times [2024-10-24 13:53:37,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:53:37,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192619743] [2024-10-24 13:53:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:53:37,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:53:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 13:53:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 13:53:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 13:53:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 13:53:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 13:53:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 13:53:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 13:53:38,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 13:53:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:53:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 13:53:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 13:53:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 13:53:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:53:38,819 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 13:53:38,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:53:38,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192619743] [2024-10-24 13:53:38,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192619743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:53:38,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:53:38,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 13:53:38,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303120568] [2024-10-24 13:53:38,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:53:38,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:53:38,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:53:38,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:53:38,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:53:38,823 INFO L87 Difference]: Start difference. First operand 18657 states and 27068 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (19), 8 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)