./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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 13:36:17,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 13:36:17,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 13:36:17,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 13:36:17,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 13:36:17,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 13:36:17,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 13:36:17,672 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 13:36:17,673 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 13:36:17,673 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 13:36:17,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 13:36:17,674 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 13:36:17,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 13:36:17,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 13:36:17,676 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 13:36:17,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 13:36:17,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 13:36:17,677 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 13:36:17,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 13:36:17,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 13:36:17,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 13:36:17,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 13:36:17,681 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 13:36:17,681 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 13:36:17,681 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 13:36:17,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 13:36:17,682 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 13:36:17,682 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 13:36:17,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 13:36:17,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 13:36:17,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 13:36:17,683 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 13:36:17,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 13:36:17,683 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 13:36:17,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 13:36:17,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 13:36:17,683 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 13:36:17,684 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 13:36:17,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 13:36:17,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 [2024-10-24 13:36:17,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 13:36:17,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 13:36:17,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 13:36:17,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 13:36:17,961 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 13:36:17,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2024-10-24 13:36:19,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 13:36:19,788 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 13:36:19,789 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2024-10-24 13:36:19,811 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf573139/db2691127d9d426ba3887e39402b768f/FLAGd94862548 [2024-10-24 13:36:19,824 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cf573139/db2691127d9d426ba3887e39402b768f [2024-10-24 13:36:19,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 13:36:19,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 13:36:19,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 13:36:19,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 13:36:19,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 13:36:19,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:36:19" (1/1) ... [2024-10-24 13:36:19,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f04f1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:19, skipping insertion in model container [2024-10-24 13:36:19,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:36:19" (1/1) ... [2024-10-24 13:36:19,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 13:36:20,721 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2024-10-24 13:36:20,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 13:36:20,870 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 13:36:20,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [1076] [2024-10-24 13:36:20,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [1083] [2024-10-24 13:36:20,992 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2024-10-24 13:36:21,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 13:36:21,160 INFO L204 MainTranslator]: Completed translation [2024-10-24 13:36:21,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21 WrapperNode [2024-10-24 13:36:21,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 13:36:21,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 13:36:21,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 13:36:21,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 13:36:21,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,423 INFO L138 Inliner]: procedures = 133, calls = 5548, calls flagged for inlining = 57, calls inlined = 51, statements flattened = 6734 [2024-10-24 13:36:21,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 13:36:21,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 13:36:21,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 13:36:21,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 13:36:21,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,767 INFO L175 MemorySlicer]: Split 4857 memory accesses to 9 slices as follows [2, 6, 4, 2, 10, 4314, 1, 497, 21]. 89 percent of accesses are in the largest equivalence class. The 4759 initializations are split as follows [2, 0, 0, 2, 0, 4254, 0, 480, 21]. The 43 writes are split as follows [0, 4, 3, 0, 10, 26, 0, 0, 0]. [2024-10-24 13:36:21,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:21,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:22,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 13:36:22,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 13:36:22,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 13:36:22,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 13:36:22,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (1/1) ... [2024-10-24 13:36:22,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 13:36:22,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 13:36:22,037 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 13:36:22,041 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 13:36:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2024-10-24 13:36:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2024-10-24 13:36:22,085 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-10-24 13:36:22,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-10-24 13:36:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2024-10-24 13:36:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2024-10-24 13:36:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-10-24 13:36:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-10-24 13:36:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2024-10-24 13:36:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2024-10-24 13:36:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2024-10-24 13:36:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2024-10-24 13:36:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 13:36:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 13:36:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 13:36:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 13:36:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 13:36:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 13:36:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 13:36:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 13:36:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 13:36:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2024-10-24 13:36:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2024-10-24 13:36:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-24 13:36:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-24 13:36:22,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 13:36:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 13:36:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 13:36:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 13:36:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 13:36:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 13:36:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 13:36:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 13:36:22,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 13:36:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-10-24 13:36:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-10-24 13:36:22,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-24 13:36:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-24 13:36:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-10-24 13:36:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-10-24 13:36:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2024-10-24 13:36:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2024-10-24 13:36:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2024-10-24 13:36:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2024-10-24 13:36:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2024-10-24 13:36:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2024-10-24 13:36:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 13:36:22,092 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2024-10-24 13:36:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-10-24 13:36:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-24 13:36:22,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2024-10-24 13:36:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 13:36:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2024-10-24 13:36:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-24 13:36:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2024-10-24 13:36:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2024-10-24 13:36:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-24 13:36:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-24 13:36:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-10-24 13:36:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-10-24 13:36:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-10-24 13:36:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-10-24 13:36:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 13:36:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-10-24 13:36:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-10-24 13:36:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 13:36:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 13:36:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2024-10-24 13:36:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2024-10-24 13:36:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-10-24 13:36:22,098 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-10-24 13:36:22,327 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 13:36:22,328 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 13:36:35,009 INFO L? ?]: Removed 423 outVars from TransFormulas that were not future-live. [2024-10-24 13:36:35,009 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 13:36:35,374 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 13:36:35,378 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 13:36:35,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:36:35 BoogieIcfgContainer [2024-10-24 13:36:35,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 13:36:35,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 13:36:35,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 13:36:35,384 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 13:36:35,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:36:19" (1/3) ... [2024-10-24 13:36:35,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d0f0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:36:35, skipping insertion in model container [2024-10-24 13:36:35,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:36:21" (2/3) ... [2024-10-24 13:36:35,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d0f0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:36:35, skipping insertion in model container [2024-10-24 13:36:35,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:36:35" (3/3) ... [2024-10-24 13:36:35,387 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2024-10-24 13:36:35,400 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 13:36:35,400 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 13:36:35,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 13:36:35,477 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;@262e3742, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 13:36:35,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 13:36:35,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 464 states, 338 states have (on average 1.5207100591715976) internal successors, (514), 347 states have internal predecessors, (514), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-24 13:36:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 13:36:35,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:35,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:36:35,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:35,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:35,497 INFO L85 PathProgramCache]: Analyzing trace with hash -108860447, now seen corresponding path program 1 times [2024-10-24 13:36:35,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:35,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122318365] [2024-10-24 13:36:35,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:35,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:37,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 13:36:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:37,163 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 13:36:37,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:37,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122318365] [2024-10-24 13:36:37,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122318365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:37,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:37,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 13:36:37,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249114558] [2024-10-24 13:36:37,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:37,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 13:36:37,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:37,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 13:36:37,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 13:36:37,203 INFO L87 Difference]: Start difference. First operand has 464 states, 338 states have (on average 1.5207100591715976) internal successors, (514), 347 states have internal predecessors, (514), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) 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 13:36:37,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:36:37,978 INFO L93 Difference]: Finished difference Result 1316 states and 2065 transitions. [2024-10-24 13:36:37,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 13:36:37,988 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 13:36:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:36:38,014 INFO L225 Difference]: With dead ends: 1316 [2024-10-24 13:36:38,015 INFO L226 Difference]: Without dead ends: 851 [2024-10-24 13:36:38,025 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 13:36:38,032 INFO L432 NwaCegarLoop]: 629 mSDtfsCounter, 680 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:36:38,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1171 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 13:36:38,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2024-10-24 13:36:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 847. [2024-10-24 13:36:38,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 620 states have (on average 1.5161290322580645) internal successors, (940), 630 states have internal predecessors, (940), 179 states have call successors, (179), 48 states have call predecessors, (179), 47 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-10-24 13:36:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1293 transitions. [2024-10-24 13:36:38,118 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1293 transitions. Word has length 15 [2024-10-24 13:36:38,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:36:38,119 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1293 transitions. [2024-10-24 13:36:38,119 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 13:36:38,119 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1293 transitions. [2024-10-24 13:36:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 13:36:38,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:38,121 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] [2024-10-24 13:36:38,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 13:36:38,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:38,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:38,122 INFO L85 PathProgramCache]: Analyzing trace with hash 80157654, now seen corresponding path program 1 times [2024-10-24 13:36:38,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:38,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616094606] [2024-10-24 13:36:38,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:38,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:38,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:36:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:38,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:38,880 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 13:36:38,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:38,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616094606] [2024-10-24 13:36:38,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616094606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:38,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:38,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:36:38,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574659367] [2024-10-24 13:36:38,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:38,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:36:38,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:38,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:36:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:36:38,883 INFO L87 Difference]: Start difference. First operand 847 states and 1293 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 13:36:40,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:36:40,555 INFO L93 Difference]: Finished difference Result 2526 states and 3841 transitions. [2024-10-24 13:36:40,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 13:36:40,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2024-10-24 13:36:40,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:36:40,567 INFO L225 Difference]: With dead ends: 2526 [2024-10-24 13:36:40,568 INFO L226 Difference]: Without dead ends: 1680 [2024-10-24 13:36:40,571 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 13:36:40,572 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 841 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 13:36:40,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 1105 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 13:36:40,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2024-10-24 13:36:40,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1505. [2024-10-24 13:36:40,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1087 states have (on average 1.4737810487580496) internal successors, (1602), 1103 states have internal predecessors, (1602), 328 states have call successors, (328), 90 states have call predecessors, (328), 89 states have return successors, (323), 323 states have call predecessors, (323), 323 states have call successors, (323) [2024-10-24 13:36:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2253 transitions. [2024-10-24 13:36:40,651 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2253 transitions. Word has length 25 [2024-10-24 13:36:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:36:40,652 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2253 transitions. [2024-10-24 13:36:40,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 13:36:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2253 transitions. [2024-10-24 13:36:40,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-24 13:36:40,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:40,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:36:40,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 13:36:40,654 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:40,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1219947866, now seen corresponding path program 1 times [2024-10-24 13:36:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:40,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769399169] [2024-10-24 13:36:40,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:40,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:42,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:36:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:42,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:42,572 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 13:36:42,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:42,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769399169] [2024-10-24 13:36:42,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769399169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:42,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:42,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 13:36:42,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746245676] [2024-10-24 13:36:42,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:42,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 13:36:42,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:42,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 13:36:42,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:36:42,579 INFO L87 Difference]: Start difference. First operand 1505 states and 2253 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 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 13:36:44,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:36:44,372 INFO L93 Difference]: Finished difference Result 3215 states and 4859 transitions. [2024-10-24 13:36:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 13:36:44,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 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 30 [2024-10-24 13:36:44,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:36:44,383 INFO L225 Difference]: With dead ends: 3215 [2024-10-24 13:36:44,383 INFO L226 Difference]: Without dead ends: 1711 [2024-10-24 13:36:44,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:36:44,390 INFO L432 NwaCegarLoop]: 456 mSDtfsCounter, 255 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:36:44,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 2403 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 13:36:44,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2024-10-24 13:36:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1527. [2024-10-24 13:36:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1105 states have (on average 1.4714932126696834) internal successors, (1626), 1121 states have internal predecessors, (1626), 332 states have call successors, (332), 90 states have call predecessors, (332), 89 states have return successors, (327), 327 states have call predecessors, (327), 327 states have call successors, (327) [2024-10-24 13:36:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 2285 transitions. [2024-10-24 13:36:44,465 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 2285 transitions. Word has length 30 [2024-10-24 13:36:44,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:36:44,465 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 2285 transitions. [2024-10-24 13:36:44,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 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 13:36:44,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 2285 transitions. [2024-10-24 13:36:44,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-24 13:36:44,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:44,467 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:36:44,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 13:36:44,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:44,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:44,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1001093148, now seen corresponding path program 1 times [2024-10-24 13:36:44,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:44,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52665098] [2024-10-24 13:36:44,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:44,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:45,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:36:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:45,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:45,265 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 13:36:45,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:45,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52665098] [2024-10-24 13:36:45,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52665098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:45,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:45,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:36:45,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609201291] [2024-10-24 13:36:45,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:45,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:36:45,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:45,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:36:45,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:36:45,268 INFO L87 Difference]: Start difference. First operand 1527 states and 2285 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 13:36:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:36:46,254 INFO L93 Difference]: Finished difference Result 1689 states and 2568 transitions. [2024-10-24 13:36:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:36:46,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 30 [2024-10-24 13:36:46,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:36:46,262 INFO L225 Difference]: With dead ends: 1689 [2024-10-24 13:36:46,262 INFO L226 Difference]: Without dead ends: 1686 [2024-10-24 13:36:46,263 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 13:36:46,264 INFO L432 NwaCegarLoop]: 399 mSDtfsCounter, 795 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 13:36:46,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 685 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 13:36:46,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-10-24 13:36:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1526. [2024-10-24 13:36:46,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1105 states have (on average 1.4705882352941178) internal successors, (1625), 1120 states have internal predecessors, (1625), 331 states have call successors, (331), 90 states have call predecessors, (331), 89 states have return successors, (327), 327 states have call predecessors, (327), 327 states have call successors, (327) [2024-10-24 13:36:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2283 transitions. [2024-10-24 13:36:46,314 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2283 transitions. Word has length 30 [2024-10-24 13:36:46,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:36:46,315 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 2283 transitions. [2024-10-24 13:36:46,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 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 13:36:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2283 transitions. [2024-10-24 13:36:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 13:36:46,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:46,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:36:46,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 13:36:46,317 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:46,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:46,317 INFO L85 PathProgramCache]: Analyzing trace with hash -969343403, now seen corresponding path program 1 times [2024-10-24 13:36:46,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:46,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341767351] [2024-10-24 13:36:46,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:46,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:46,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:36:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:46,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:46,934 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 13:36:46,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:46,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341767351] [2024-10-24 13:36:46,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341767351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:46,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:46,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:36:46,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491933418] [2024-10-24 13:36:46,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:46,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:36:46,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:46,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:36:46,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:36:46,935 INFO L87 Difference]: Start difference. First operand 1526 states and 2283 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 13:36:48,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:36:48,073 INFO L93 Difference]: Finished difference Result 1688 states and 2566 transitions. [2024-10-24 13:36:48,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:36:48,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 31 [2024-10-24 13:36:48,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:36:48,085 INFO L225 Difference]: With dead ends: 1688 [2024-10-24 13:36:48,085 INFO L226 Difference]: Without dead ends: 1685 [2024-10-24 13:36:48,087 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 13:36:48,088 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 792 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 13:36:48,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 682 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 13:36:48,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-10-24 13:36:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1525. [2024-10-24 13:36:48,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1105 states have (on average 1.4696832579185521) internal successors, (1624), 1119 states have internal predecessors, (1624), 330 states have call successors, (330), 90 states have call predecessors, (330), 89 states have return successors, (327), 327 states have call predecessors, (327), 327 states have call successors, (327) [2024-10-24 13:36:48,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2281 transitions. [2024-10-24 13:36:48,171 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2281 transitions. Word has length 31 [2024-10-24 13:36:48,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:36:48,171 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 2281 transitions. [2024-10-24 13:36:48,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 13:36:48,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2281 transitions. [2024-10-24 13:36:48,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-24 13:36:48,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:48,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:36:48,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 13:36:48,173 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:48,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:48,174 INFO L85 PathProgramCache]: Analyzing trace with hash 14903559, now seen corresponding path program 1 times [2024-10-24 13:36:48,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:48,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756037377] [2024-10-24 13:36:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:48,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:49,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:36:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:49,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:49,152 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 13:36:49,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:49,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756037377] [2024-10-24 13:36:49,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756037377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:49,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:49,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:36:49,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828341726] [2024-10-24 13:36:49,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:49,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:36:49,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:49,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:36:49,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:36:49,155 INFO L87 Difference]: Start difference. First operand 1525 states and 2281 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 13:36:50,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:36:50,506 INFO L93 Difference]: Finished difference Result 4387 states and 6651 transitions. [2024-10-24 13:36:50,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 13:36:50,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 32 [2024-10-24 13:36:50,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:36:50,523 INFO L225 Difference]: With dead ends: 4387 [2024-10-24 13:36:50,523 INFO L226 Difference]: Without dead ends: 2855 [2024-10-24 13:36:50,530 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 13:36:50,531 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 891 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 13:36:50,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 988 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 13:36:50,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2024-10-24 13:36:50,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2652. [2024-10-24 13:36:50,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 1923 states have (on average 1.466458658346334) internal successors, (2820), 1960 states have internal predecessors, (2820), 583 states have call successors, (583), 159 states have call predecessors, (583), 145 states have return successors, (573), 556 states have call predecessors, (573), 573 states have call successors, (573) [2024-10-24 13:36:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3976 transitions. [2024-10-24 13:36:50,631 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3976 transitions. Word has length 32 [2024-10-24 13:36:50,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:36:50,633 INFO L471 AbstractCegarLoop]: Abstraction has 2652 states and 3976 transitions. [2024-10-24 13:36:50,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 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 13:36:50,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3976 transitions. [2024-10-24 13:36:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-24 13:36:50,635 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:50,635 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 13:36:50,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 13:36:50,635 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:50,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:50,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1851815843, now seen corresponding path program 1 times [2024-10-24 13:36:50,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:50,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550175336] [2024-10-24 13:36:50,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:50,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:51,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:36:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:51,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:51,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 13:36:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:51,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:51,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 13:36:51,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:51,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550175336] [2024-10-24 13:36:51,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550175336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:51,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:51,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:36:51,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156972492] [2024-10-24 13:36:51,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:51,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:36:51,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:51,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:36:51,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:36:51,326 INFO L87 Difference]: Start difference. First operand 2652 states and 3976 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 13:36:53,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:36:53,077 INFO L93 Difference]: Finished difference Result 6922 states and 10497 transitions. [2024-10-24 13:36:53,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 13:36:53,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-10-24 13:36:53,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:36:53,129 INFO L225 Difference]: With dead ends: 6922 [2024-10-24 13:36:53,129 INFO L226 Difference]: Without dead ends: 4271 [2024-10-24 13:36:53,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 13:36:53,141 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 784 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 13:36:53,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1449 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 13:36:53,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2024-10-24 13:36:53,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 3980. [2024-10-24 13:36:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 2913 states have (on average 1.4507380707174733) internal successors, (4226), 2962 states have internal predecessors, (4226), 851 states have call successors, (851), 233 states have call predecessors, (851), 215 states have return successors, (841), 820 states have call predecessors, (841), 841 states have call successors, (841) [2024-10-24 13:36:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 5918 transitions. [2024-10-24 13:36:53,289 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 5918 transitions. Word has length 51 [2024-10-24 13:36:53,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:36:53,289 INFO L471 AbstractCegarLoop]: Abstraction has 3980 states and 5918 transitions. [2024-10-24 13:36:53,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 13:36:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 5918 transitions. [2024-10-24 13:36:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 13:36:53,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:53,293 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:36:53,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 13:36:53,293 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:53,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:53,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1456676127, now seen corresponding path program 1 times [2024-10-24 13:36:53,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:53,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107484827] [2024-10-24 13:36:53,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:53,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 13:36:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 13:36:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 13:36:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 13:36:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 13:36:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 13:36:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 13:36:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 13:36:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:53,924 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 13:36:53,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:53,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107484827] [2024-10-24 13:36:53,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107484827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:53,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:53,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:36:53,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867919850] [2024-10-24 13:36:53,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:53,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:36:53,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:53,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:36:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:36:53,929 INFO L87 Difference]: Start difference. First operand 3980 states and 5918 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 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 13:36:56,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 13:36:57,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:36:57,148 INFO L93 Difference]: Finished difference Result 9726 states and 14710 transitions. [2024-10-24 13:36:57,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 13:36:57,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 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 78 [2024-10-24 13:36:57,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:36:57,177 INFO L225 Difference]: With dead ends: 9726 [2024-10-24 13:36:57,178 INFO L226 Difference]: Without dead ends: 5747 [2024-10-24 13:36:57,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-10-24 13:36:57,191 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 964 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 685 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-24 13:36:57,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 1553 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [685 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-24 13:36:57,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2024-10-24 13:36:57,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5108. [2024-10-24 13:36:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5108 states, 3865 states have (on average 1.4822768434670117) internal successors, (5729), 3930 states have internal predecessors, (5729), 971 states have call successors, (971), 295 states have call predecessors, (971), 271 states have return successors, (955), 918 states have call predecessors, (955), 955 states have call successors, (955) [2024-10-24 13:36:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 7655 transitions. [2024-10-24 13:36:57,508 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 7655 transitions. Word has length 78 [2024-10-24 13:36:57,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:36:57,508 INFO L471 AbstractCegarLoop]: Abstraction has 5108 states and 7655 transitions. [2024-10-24 13:36:57,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 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 13:36:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 7655 transitions. [2024-10-24 13:36:57,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-24 13:36:57,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:36:57,512 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-24 13:36:57,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 13:36:57,513 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:36:57,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:36:57,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1057421194, now seen corresponding path program 1 times [2024-10-24 13:36:57,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:36:57,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395073656] [2024-10-24 13:36:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:36:57,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:36:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:58,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:36:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:58,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:58,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 13:36:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:58,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:36:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:36:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-24 13:36:58,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:36:58,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395073656] [2024-10-24 13:36:58,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395073656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:36:58,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:36:58,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 13:36:58,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57856835] [2024-10-24 13:36:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:36:58,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:36:58,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:36:58,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:36:58,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 13:36:58,513 INFO L87 Difference]: Start difference. First operand 5108 states and 7655 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 13:37:00,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:37:00,448 INFO L93 Difference]: Finished difference Result 12396 states and 18791 transitions. [2024-10-24 13:37:00,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 13:37:00,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 70 [2024-10-24 13:37:00,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:37:00,495 INFO L225 Difference]: With dead ends: 12396 [2024-10-24 13:37:00,495 INFO L226 Difference]: Without dead ends: 7289 [2024-10-24 13:37:00,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 13:37:00,509 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 771 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 13:37:00,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1480 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 13:37:00,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7289 states. [2024-10-24 13:37:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7289 to 6834. [2024-10-24 13:37:00,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6834 states, 5203 states have (on average 1.4693446088794926) internal successors, (7645), 5282 states have internal predecessors, (7645), 1269 states have call successors, (1269), 389 states have call predecessors, (1269), 361 states have return successors, (1253), 1210 states have call predecessors, (1253), 1253 states have call successors, (1253) [2024-10-24 13:37:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6834 states to 6834 states and 10167 transitions. [2024-10-24 13:37:00,806 INFO L78 Accepts]: Start accepts. Automaton has 6834 states and 10167 transitions. Word has length 70 [2024-10-24 13:37:00,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:37:00,806 INFO L471 AbstractCegarLoop]: Abstraction has 6834 states and 10167 transitions. [2024-10-24 13:37:00,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 13:37:00,807 INFO L276 IsEmpty]: Start isEmpty. Operand 6834 states and 10167 transitions. [2024-10-24 13:37:00,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 13:37:00,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:37:00,811 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-10-24 13:37:00,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 13:37:00,811 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:37:00,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:37:00,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1512345642, now seen corresponding path program 1 times [2024-10-24 13:37:00,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:37:00,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024948464] [2024-10-24 13:37:00,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:00,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:37:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:37:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 13:37:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-24 13:37:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 13:37:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 13:37:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:01,670 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 13:37:01,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:37:01,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024948464] [2024-10-24 13:37:01,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024948464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:37:01,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:37:01,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 13:37:01,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82503424] [2024-10-24 13:37:01,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:37:01,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:37:01,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:37:01,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:37:01,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:37:01,672 INFO L87 Difference]: Start difference. First operand 6834 states and 10167 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 13:37:03,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:37:03,274 INFO L93 Difference]: Finished difference Result 14109 states and 21123 transitions. [2024-10-24 13:37:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 13:37:03,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 95 [2024-10-24 13:37:03,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:37:03,300 INFO L225 Difference]: With dead ends: 14109 [2024-10-24 13:37:03,300 INFO L226 Difference]: Without dead ends: 7276 [2024-10-24 13:37:03,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-10-24 13:37:03,318 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 962 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 13:37:03,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 1659 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 13:37:03,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7276 states. [2024-10-24 13:37:03,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7276 to 6834. [2024-10-24 13:37:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6834 states, 5203 states have (on average 1.4685758216413607) internal successors, (7641), 5282 states have internal predecessors, (7641), 1269 states have call successors, (1269), 389 states have call predecessors, (1269), 361 states have return successors, (1253), 1210 states have call predecessors, (1253), 1253 states have call successors, (1253) [2024-10-24 13:37:03,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6834 states to 6834 states and 10163 transitions. [2024-10-24 13:37:03,575 INFO L78 Accepts]: Start accepts. Automaton has 6834 states and 10163 transitions. Word has length 95 [2024-10-24 13:37:03,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:37:03,576 INFO L471 AbstractCegarLoop]: Abstraction has 6834 states and 10163 transitions. [2024-10-24 13:37:03,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 13:37:03,576 INFO L276 IsEmpty]: Start isEmpty. Operand 6834 states and 10163 transitions. [2024-10-24 13:37:03,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 13:37:03,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:37:03,584 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-10-24 13:37:03,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 13:37:03,585 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:37:03,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:37:03,586 INFO L85 PathProgramCache]: Analyzing trace with hash -143630585, now seen corresponding path program 1 times [2024-10-24 13:37:03,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:37:03,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007974999] [2024-10-24 13:37:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:03,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:37:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:37:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 13:37:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-24 13:37:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 13:37:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 13:37:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 13:37:04,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:37:04,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007974999] [2024-10-24 13:37:04,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007974999] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 13:37:04,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403008915] [2024-10-24 13:37:04,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:04,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 13:37:04,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 13:37:04,444 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 13:37:04,445 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 13:37:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:06,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 13220 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 13:37:06,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 13:37:06,665 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 13:37:06,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 13:37:06,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403008915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:37:06,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 13:37:06,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-10-24 13:37:06,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785699073] [2024-10-24 13:37:06,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:37:06,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 13:37:06,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:37:06,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 13:37:06,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-24 13:37:06,669 INFO L87 Difference]: Start difference. First operand 6834 states and 10163 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 13:37:07,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:37:07,577 INFO L93 Difference]: Finished difference Result 13946 states and 20739 transitions. [2024-10-24 13:37:07,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 13:37:07,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 97 [2024-10-24 13:37:07,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:37:07,612 INFO L225 Difference]: With dead ends: 13946 [2024-10-24 13:37:07,612 INFO L226 Difference]: Without dead ends: 7073 [2024-10-24 13:37:07,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-24 13:37:07,635 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 28 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 4316 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 13:37:07,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 4316 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 13:37:07,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7073 states. [2024-10-24 13:37:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7073 to 6839. [2024-10-24 13:37:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6839 states, 5208 states have (on average 1.4635176651305684) internal successors, (7622), 5287 states have internal predecessors, (7622), 1269 states have call successors, (1269), 389 states have call predecessors, (1269), 361 states have return successors, (1253), 1210 states have call predecessors, (1253), 1253 states have call successors, (1253) [2024-10-24 13:37:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6839 states to 6839 states and 10144 transitions. [2024-10-24 13:37:07,915 INFO L78 Accepts]: Start accepts. Automaton has 6839 states and 10144 transitions. Word has length 97 [2024-10-24 13:37:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:37:07,916 INFO L471 AbstractCegarLoop]: Abstraction has 6839 states and 10144 transitions. [2024-10-24 13:37:07,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 13:37:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 6839 states and 10144 transitions. [2024-10-24 13:37:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 13:37:07,921 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:37:07,921 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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, 1] [2024-10-24 13:37:07,964 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 13:37:08,124 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,SelfDestructingSolverStorable10 [2024-10-24 13:37:08,126 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:37:08,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:37:08,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1779176621, now seen corresponding path program 1 times [2024-10-24 13:37:08,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:37:08,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682273627] [2024-10-24 13:37:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:08,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:37:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:37:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 13:37:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 13:37:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 13:37:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-24 13:37:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 13:37:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 13:37:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-24 13:37:09,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:37:09,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682273627] [2024-10-24 13:37:09,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682273627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:37:09,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:37:09,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 13:37:09,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746822996] [2024-10-24 13:37:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:37:09,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 13:37:09,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:37:09,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 13:37:09,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:37:09,185 INFO L87 Difference]: Start difference. First operand 6839 states and 10144 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 13:37:10,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:37:10,746 INFO L93 Difference]: Finished difference Result 14151 states and 21125 transitions. [2024-10-24 13:37:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 13:37:10,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2024-10-24 13:37:10,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:37:10,773 INFO L225 Difference]: With dead ends: 14151 [2024-10-24 13:37:10,773 INFO L226 Difference]: Without dead ends: 7313 [2024-10-24 13:37:10,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:37:10,789 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 242 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 13:37:10,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 1928 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 13:37:10,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2024-10-24 13:37:11,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 6871. [2024-10-24 13:37:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6871 states, 5240 states have (on average 1.4606870229007634) internal successors, (7654), 5319 states have internal predecessors, (7654), 1269 states have call successors, (1269), 389 states have call predecessors, (1269), 361 states have return successors, (1253), 1210 states have call predecessors, (1253), 1253 states have call successors, (1253) [2024-10-24 13:37:11,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6871 states to 6871 states and 10176 transitions. [2024-10-24 13:37:11,051 INFO L78 Accepts]: Start accepts. Automaton has 6871 states and 10176 transitions. Word has length 117 [2024-10-24 13:37:11,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:37:11,052 INFO L471 AbstractCegarLoop]: Abstraction has 6871 states and 10176 transitions. [2024-10-24 13:37:11,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-24 13:37:11,052 INFO L276 IsEmpty]: Start isEmpty. Operand 6871 states and 10176 transitions. [2024-10-24 13:37:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 13:37:11,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:37:11,056 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-10-24 13:37:11,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 13:37:11,057 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:37:11,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:37:11,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1226423403, now seen corresponding path program 1 times [2024-10-24 13:37:11,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:37:11,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138715472] [2024-10-24 13:37:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:11,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:37:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:37:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 13:37:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 13:37:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-24 13:37:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 13:37:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 13:37:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-24 13:37:12,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:37:12,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138715472] [2024-10-24 13:37:12,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138715472] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:37:12,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:37:12,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 13:37:12,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149536060] [2024-10-24 13:37:12,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:37:12,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 13:37:12,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:37:12,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 13:37:12,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:37:12,434 INFO L87 Difference]: Start difference. First operand 6871 states and 10176 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 13:37:13,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:37:13,933 INFO L93 Difference]: Finished difference Result 14183 states and 21141 transitions. [2024-10-24 13:37:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 13:37:13,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2024-10-24 13:37:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:37:13,963 INFO L225 Difference]: With dead ends: 14183 [2024-10-24 13:37:13,963 INFO L226 Difference]: Without dead ends: 7313 [2024-10-24 13:37:13,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 13:37:13,981 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 568 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 13:37:13,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 1650 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 13:37:13,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2024-10-24 13:37:14,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 6847. [2024-10-24 13:37:14,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6847 states, 5216 states have (on average 1.4566717791411044) internal successors, (7598), 5295 states have internal predecessors, (7598), 1269 states have call successors, (1269), 389 states have call predecessors, (1269), 361 states have return successors, (1253), 1210 states have call predecessors, (1253), 1253 states have call successors, (1253) [2024-10-24 13:37:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6847 states to 6847 states and 10120 transitions. [2024-10-24 13:37:14,244 INFO L78 Accepts]: Start accepts. Automaton has 6847 states and 10120 transitions. Word has length 117 [2024-10-24 13:37:14,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:37:14,245 INFO L471 AbstractCegarLoop]: Abstraction has 6847 states and 10120 transitions. [2024-10-24 13:37:14,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 13:37:14,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6847 states and 10120 transitions. [2024-10-24 13:37:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 13:37:14,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:37:14,251 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2024-10-24 13:37:14,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 13:37:14,252 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:37:14,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:37:14,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1464487376, now seen corresponding path program 1 times [2024-10-24 13:37:14,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:37:14,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35292488] [2024-10-24 13:37:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:14,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:37:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:37:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 13:37:15,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 13:37:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-24 13:37:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-24 13:37:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 13:37:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:15,260 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-24 13:37:15,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:37:15,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35292488] [2024-10-24 13:37:15,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35292488] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 13:37:15,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409325702] [2024-10-24 13:37:15,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:15,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 13:37:15,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 13:37:15,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 13:37:15,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 13:37:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:16,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 13295 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 13:37:16,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 13:37:17,122 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-24 13:37:17,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 13:37:17,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409325702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:37:17,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 13:37:17,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-10-24 13:37:17,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91067504] [2024-10-24 13:37:17,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:37:17,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 13:37:17,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:37:17,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 13:37:17,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:37:17,127 INFO L87 Difference]: Start difference. First operand 6847 states and 10120 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-24 13:37:18,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:37:18,482 INFO L93 Difference]: Finished difference Result 20542 states and 30360 transitions. [2024-10-24 13:37:18,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 13:37:18,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 120 [2024-10-24 13:37:18,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:37:18,556 INFO L225 Difference]: With dead ends: 20542 [2024-10-24 13:37:18,556 INFO L226 Difference]: Without dead ends: 20531 [2024-10-24 13:37:18,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 13:37:18,570 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 1286 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 13:37:18,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 2264 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 13:37:18,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20531 states. [2024-10-24 13:37:19,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20531 to 20457. [2024-10-24 13:37:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20457 states, 15596 states have (on average 1.4575532187740445) internal successors, (22732), 15825 states have internal predecessors, (22732), 3785 states have call successors, (3785), 1153 states have call predecessors, (3785), 1075 states have return successors, (3751), 3622 states have call predecessors, (3751), 3751 states have call successors, (3751) [2024-10-24 13:37:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20457 states to 20457 states and 30268 transitions. [2024-10-24 13:37:19,769 INFO L78 Accepts]: Start accepts. Automaton has 20457 states and 30268 transitions. Word has length 120 [2024-10-24 13:37:19,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:37:19,770 INFO L471 AbstractCegarLoop]: Abstraction has 20457 states and 30268 transitions. [2024-10-24 13:37:19,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-24 13:37:19,770 INFO L276 IsEmpty]: Start isEmpty. Operand 20457 states and 30268 transitions. [2024-10-24 13:37:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 13:37:19,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:37:19,782 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:37:19,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 13:37:19,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-24 13:37:19,983 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:37:19,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:37:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1273659949, now seen corresponding path program 1 times [2024-10-24 13:37:19,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:37:19,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142261990] [2024-10-24 13:37:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:19,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:37:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:37:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 13:37:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 13:37:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 13:37:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 13:37:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 13:37:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 13:37:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 13:37:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 13:37:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 13:37:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-24 13:37:20,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:37:20,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142261990] [2024-10-24 13:37:20,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142261990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:37:20,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:37:20,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:37:20,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546806214] [2024-10-24 13:37:20,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:37:20,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:37:20,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:37:20,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:37:20,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:37:20,670 INFO L87 Difference]: Start difference. First operand 20457 states and 30268 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 13:37:25,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 13:37:26,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:37:26,780 INFO L93 Difference]: Finished difference Result 34309 states and 50745 transitions. [2024-10-24 13:37:26,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 13:37:26,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-10-24 13:37:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:37:26,843 INFO L225 Difference]: With dead ends: 34309 [2024-10-24 13:37:26,843 INFO L226 Difference]: Without dead ends: 13829 [2024-10-24 13:37:26,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-24 13:37:26,891 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 614 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 521 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-10-24 13:37:26,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 1522 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 1082 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2024-10-24 13:37:26,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13829 states. [2024-10-24 13:37:27,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13829 to 9502. [2024-10-24 13:37:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9502 states, 7227 states have (on average 1.4703196347031964) internal successors, (10626), 7333 states have internal predecessors, (10626), 1745 states have call successors, (1745), 568 states have call predecessors, (1745), 529 states have return successors, (1729), 1672 states have call predecessors, (1729), 1729 states have call successors, (1729) [2024-10-24 13:37:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9502 states to 9502 states and 14100 transitions. [2024-10-24 13:37:27,626 INFO L78 Accepts]: Start accepts. Automaton has 9502 states and 14100 transitions. Word has length 128 [2024-10-24 13:37:27,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:37:27,626 INFO L471 AbstractCegarLoop]: Abstraction has 9502 states and 14100 transitions. [2024-10-24 13:37:27,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-24 13:37:27,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9502 states and 14100 transitions. [2024-10-24 13:37:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 13:37:27,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:37:27,632 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:37:27,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 13:37:27,632 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:37:27,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:37:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1513899695, now seen corresponding path program 1 times [2024-10-24 13:37:27,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:37:27,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482833110] [2024-10-24 13:37:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:27,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:37:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:37:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 13:37:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 13:37:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 13:37:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 13:37:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 13:37:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 13:37:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 13:37:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 13:37:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 13:37:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-24 13:37:28,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:37:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482833110] [2024-10-24 13:37:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482833110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:37:28,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:37:28,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:37:28,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933383509] [2024-10-24 13:37:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:37:28,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:37:28,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:37:28,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:37:28,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:37:28,252 INFO L87 Difference]: Start difference. First operand 9502 states and 14100 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 13:37:33,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-24 13:37:34,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 13:37:34,263 INFO L93 Difference]: Finished difference Result 20196 states and 30315 transitions. [2024-10-24 13:37:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 13:37:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2024-10-24 13:37:34,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 13:37:34,312 INFO L225 Difference]: With dead ends: 20196 [2024-10-24 13:37:34,312 INFO L226 Difference]: Without dead ends: 10708 [2024-10-24 13:37:34,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-10-24 13:37:34,336 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 608 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 511 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-10-24 13:37:34,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 1530 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 1079 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2024-10-24 13:37:34,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2024-10-24 13:37:34,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9514. [2024-10-24 13:37:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9514 states, 7239 states have (on average 1.4695399917115624) internal successors, (10638), 7345 states have internal predecessors, (10638), 1745 states have call successors, (1745), 568 states have call predecessors, (1745), 529 states have return successors, (1729), 1672 states have call predecessors, (1729), 1729 states have call successors, (1729) [2024-10-24 13:37:34,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9514 states to 9514 states and 14112 transitions. [2024-10-24 13:37:34,996 INFO L78 Accepts]: Start accepts. Automaton has 9514 states and 14112 transitions. Word has length 128 [2024-10-24 13:37:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 13:37:34,997 INFO L471 AbstractCegarLoop]: Abstraction has 9514 states and 14112 transitions. [2024-10-24 13:37:34,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 13:37:34,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9514 states and 14112 transitions. [2024-10-24 13:37:35,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 13:37:35,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 13:37:35,003 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 13:37:35,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 13:37:35,004 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 13:37:35,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 13:37:35,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1971720975, now seen corresponding path program 1 times [2024-10-24 13:37:35,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 13:37:35,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671361305] [2024-10-24 13:37:35,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 13:37:35,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 13:37:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 13:37:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-24 13:37:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 13:37:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 13:37:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 13:37:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 13:37:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 13:37:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 13:37:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 13:37:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 13:37:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 13:37:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 13:37:36,198 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-24 13:37:36,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 13:37:36,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671361305] [2024-10-24 13:37:36,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671361305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 13:37:36,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 13:37:36,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 13:37:36,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905821438] [2024-10-24 13:37:36,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 13:37:36,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 13:37:36,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 13:37:36,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 13:37:36,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 13:37:36,200 INFO L87 Difference]: Start difference. First operand 9514 states and 14112 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)