./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:43,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:43,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 11:43:43,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:43,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:43,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:43,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:43,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:43,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:43:43,737 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:43:43,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:43,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:43,739 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:43,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:43,742 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:43,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:43,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:43,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:43,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:43,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:43,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:43,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:43,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:43,746 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:43,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:43,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:43,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:43:43,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:43,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:43,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:43,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:43,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:43,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:43,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:43,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:43,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:43,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:43,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:43,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:43,753 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 [2023-11-26 11:43:44,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:44,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:44,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:44,048 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:44,049 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:44,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2023-11-26 11:43:47,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:47,698 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:47,699 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2023-11-26 11:43:47,750 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/data/e795325df/41df9de5bac84d28a12dc1aa9a47c097/FLAGf073de4e5 [2023-11-26 11:43:47,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/data/e795325df/41df9de5bac84d28a12dc1aa9a47c097 [2023-11-26 11:43:47,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:47,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:47,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,784 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:47,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:47,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21371f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,923 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:49,167 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2023-11-26 11:43:49,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:49,398 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:49,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [2571] [2023-11-26 11:43:49,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [2579] [2023-11-26 11:43:49,745 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2023-11-26 11:43:49,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:50,076 WARN L675 CHandler]: The function strcspn is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,076 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,085 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:50,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50 WrapperNode [2023-11-26 11:43:50,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:50,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:50,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:50,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:50,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,560 INFO L138 Inliner]: procedures = 165, calls = 5886, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 7117 [2023-11-26 11:43:50,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:50,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:50,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:50,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:50,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,674 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,428 INFO L175 MemorySlicer]: Split 4970 memory accesses to 18 slices as follows [2, 3, 4, 4, 4, 2, 1, 10, 4314, 84, 497, 23, 6, 4, 3, 3, 3, 3]. 87 percent of accesses are in the largest equivalence class. The 4785 initializations are split as follows [2, 3, 0, 4, 4, 2, 0, 0, 4254, 0, 480, 23, 0, 4, 3, 3, 0, 3]. The 117 writes are split as follows [0, 0, 3, 0, 0, 0, 0, 10, 26, 72, 0, 0, 4, 0, 0, 0, 2, 0]. [2023-11-26 11:43:51,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,630 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:51,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:51,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:51,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:51,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:51,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:51,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:51,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5cfe4d9-3412-49fe-b404-25e58c661d35/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2023-11-26 11:43:51,822 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2023-11-26 11:43:51,822 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-26 11:43:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-26 11:43:51,823 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2023-11-26 11:43:51,823 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2023-11-26 11:43:51,824 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-26 11:43:51,824 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-26 11:43:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2023-11-26 11:43:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2023-11-26 11:43:51,825 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_remove [2023-11-26 11:43:51,825 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_remove [2023-11-26 11:43:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2023-11-26 11:43:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2023-11-26 11:43:51,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-26 11:43:51,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-26 11:43:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:43:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:43:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:43:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:43:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:43:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:43:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:43:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:43:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 11:43:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 11:43:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 11:43:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 11:43:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 11:43:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-26 11:43:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-26 11:43:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-26 11:43:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-26 11:43:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-26 11:43:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-26 11:43:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-26 11:43:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2023-11-26 11:43:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2023-11-26 11:43:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-26 11:43:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-26 11:43:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:43:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:43:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:43:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:43:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 11:43:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-26 11:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-26 11:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-26 11:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-26 11:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-26 11:43:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-26 11:43:51,834 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-26 11:43:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-26 11:43:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-26 11:43:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_probe [2023-11-26 11:43:51,836 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_probe [2023-11-26 11:43:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-26 11:43:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-26 11:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-26 11:43:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-26 11:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2023-11-26 11:43:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2023-11-26 11:43:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-26 11:43:51,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-26 11:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2023-11-26 11:43:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2023-11-26 11:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-26 11:43:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-26 11:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:43:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:43:51,838 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2023-11-26 11:43:51,838 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2023-11-26 11:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2023-11-26 11:43:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2023-11-26 11:43:51,839 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-26 11:43:51,839 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-26 11:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:43:51,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 11:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-26 11:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-26 11:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-26 11:43:51,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-26 11:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-26 11:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-26 11:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-26 11:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-26 11:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-26 11:43:51,842 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2023-11-26 11:43:51,842 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2023-11-26 11:43:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:43:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:43:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:43:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:43:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:43:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:43:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:43:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:43:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 11:43:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-26 11:43:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-26 11:43:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-26 11:43:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-26 11:43:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-26 11:43:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-26 11:43:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-26 11:43:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-26 11:43:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-26 11:43:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-26 11:43:51,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-26 11:43:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:43:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:43:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:43:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:43:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:43:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:43:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:43:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:43:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 11:43:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 11:43:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-26 11:43:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-26 11:43:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-26 11:43:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-26 11:43:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-26 11:43:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-26 11:43:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-26 11:43:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-26 11:43:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-26 11:43:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2023-11-26 11:43:51,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2023-11-26 11:43:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-26 11:43:51,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-26 11:43:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2023-11-26 11:43:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-26 11:43:51,851 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-26 11:43:51,851 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-26 11:43:51,851 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-26 11:43:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:43:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:43:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:43:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:43:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:43:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:43:51,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:43:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:43:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 11:43:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 11:43:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 11:43:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 11:43:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 11:43:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-26 11:43:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-26 11:43:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-26 11:43:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-26 11:43:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-26 11:43:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-26 11:43:51,854 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-26 11:43:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:51,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2023-11-26 11:43:51,855 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2023-11-26 11:43:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-26 11:43:51,855 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-26 11:43:52,346 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:52,349 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:52,487 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-26 11:44:10,537 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:44:11,295 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:44:11,295 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:44:11,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:11 BoogieIcfgContainer [2023-11-26 11:44:11,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:44:11,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:44:11,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:44:11,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:44:11,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:43:47" (1/3) ... [2023-11-26 11:44:11,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c76189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:11, skipping insertion in model container [2023-11-26 11:44:11,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (2/3) ... [2023-11-26 11:44:11,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c76189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:11, skipping insertion in model container [2023-11-26 11:44:11,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:11" (3/3) ... [2023-11-26 11:44:11,309 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2023-11-26 11:44:11,328 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:44:11,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:44:11,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:44:11,426 INFO L357 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, mHoare=true, 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;@59dd2d5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:44:11,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:44:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 538 states, 382 states have (on average 1.5026178010471205) internal successors, (574), 395 states have internal predecessors, (574), 122 states have call successors, (122), 33 states have call predecessors, (122), 32 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2023-11-26 11:44:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 11:44:11,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:11,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:11,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:11,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:11,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1297719522, now seen corresponding path program 1 times [2023-11-26 11:44:11,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:11,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989029180] [2023-11-26 11:44:11,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:11,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:44:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:14,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:14,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989029180] [2023-11-26 11:44:14,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989029180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:14,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:14,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:14,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476253569] [2023-11-26 11:44:14,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:14,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:14,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:14,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:14,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:14,148 INFO L87 Difference]: Start difference. First operand has 538 states, 382 states have (on average 1.5026178010471205) internal successors, (574), 395 states have internal predecessors, (574), 122 states have call successors, (122), 33 states have call predecessors, (122), 32 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:44:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:15,179 INFO L93 Difference]: Finished difference Result 1532 states and 2361 transitions. [2023-11-26 11:44:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:15,185 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 [2023-11-26 11:44:15,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:15,215 INFO L225 Difference]: With dead ends: 1532 [2023-11-26 11:44:15,215 INFO L226 Difference]: Without dead ends: 983 [2023-11-26 11:44:15,223 INFO L412 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 [2023-11-26 11:44:15,227 INFO L413 NwaCegarLoop]: 1116 mSDtfsCounter, 778 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:15,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1765 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 11:44:15,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2023-11-26 11:44:15,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 979. [2023-11-26 11:44:15,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 703 states have (on average 1.4850640113798008) internal successors, (1044), 713 states have internal predecessors, (1044), 214 states have call successors, (214), 62 states have call predecessors, (214), 61 states have return successors, (209), 209 states have call predecessors, (209), 209 states have call successors, (209) [2023-11-26 11:44:15,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1467 transitions. [2023-11-26 11:44:15,395 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1467 transitions. Word has length 15 [2023-11-26 11:44:15,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:15,396 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1467 transitions. [2023-11-26 11:44:15,396 INFO L496 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) [2023-11-26 11:44:15,396 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1467 transitions. [2023-11-26 11:44:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-26 11:44:15,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:15,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:15,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:44:15,405 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:15,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash -624370869, now seen corresponding path program 1 times [2023-11-26 11:44:15,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:15,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681630335] [2023-11-26 11:44:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:15,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:44:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:16,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:16,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681630335] [2023-11-26 11:44:16,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681630335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:16,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:16,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:16,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036980768] [2023-11-26 11:44:16,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:16,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:16,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:16,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:16,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:16,601 INFO L87 Difference]: Start difference. First operand 979 states and 1467 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:44:17,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:17,268 INFO L93 Difference]: Finished difference Result 2751 states and 4076 transitions. [2023-11-26 11:44:17,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:17,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-26 11:44:17,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:17,288 INFO L225 Difference]: With dead ends: 2751 [2023-11-26 11:44:17,288 INFO L226 Difference]: Without dead ends: 1773 [2023-11-26 11:44:17,293 INFO L412 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 [2023-11-26 11:44:17,295 INFO L413 NwaCegarLoop]: 1003 mSDtfsCounter, 629 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:17,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 1688 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:44:17,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2023-11-26 11:44:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1758. [2023-11-26 11:44:17,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1247 states have (on average 1.4490777866880513) internal successors, (1807), 1263 states have internal predecessors, (1807), 395 states have call successors, (395), 116 states have call predecessors, (395), 115 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390) [2023-11-26 11:44:17,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2592 transitions. [2023-11-26 11:44:17,408 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2592 transitions. Word has length 19 [2023-11-26 11:44:17,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:17,409 INFO L495 AbstractCegarLoop]: Abstraction has 1758 states and 2592 transitions. [2023-11-26 11:44:17,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:44:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2592 transitions. [2023-11-26 11:44:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 11:44:17,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:17,411 INFO L195 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] [2023-11-26 11:44:17,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:44:17,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:17,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:17,412 INFO L85 PathProgramCache]: Analyzing trace with hash 765007016, now seen corresponding path program 1 times [2023-11-26 11:44:17,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:17,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954093430] [2023-11-26 11:44:17,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:17,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:18,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:18,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954093430] [2023-11-26 11:44:18,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954093430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:18,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:18,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:44:18,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007176979] [2023-11-26 11:44:18,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:18,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:44:18,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:18,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:44:18,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:44:18,612 INFO L87 Difference]: Start difference. First operand 1758 states and 2592 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:44:20,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:20,169 INFO L93 Difference]: Finished difference Result 1840 states and 2735 transitions. [2023-11-26 11:44:20,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:44:20,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-11-26 11:44:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:20,191 INFO L225 Difference]: With dead ends: 1840 [2023-11-26 11:44:20,191 INFO L226 Difference]: Without dead ends: 1837 [2023-11-26 11:44:20,196 INFO L412 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 [2023-11-26 11:44:20,204 INFO L413 NwaCegarLoop]: 639 mSDtfsCounter, 777 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:20,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 1058 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 11:44:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2023-11-26 11:44:20,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1757. [2023-11-26 11:44:20,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1247 states have (on average 1.4482758620689655) internal successors, (1806), 1262 states have internal predecessors, (1806), 394 states have call successors, (394), 116 states have call predecessors, (394), 115 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390) [2023-11-26 11:44:20,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2590 transitions. [2023-11-26 11:44:20,434 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2590 transitions. Word has length 27 [2023-11-26 11:44:20,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:20,436 INFO L495 AbstractCegarLoop]: Abstraction has 1757 states and 2590 transitions. [2023-11-26 11:44:20,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:44:20,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2590 transitions. [2023-11-26 11:44:20,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-26 11:44:20,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:20,439 INFO L195 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] [2023-11-26 11:44:20,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:44:20,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:20,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:20,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2054703605, now seen corresponding path program 1 times [2023-11-26 11:44:20,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:20,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354957452] [2023-11-26 11:44:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:20,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:21,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:21,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354957452] [2023-11-26 11:44:21,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354957452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:21,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:21,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:44:21,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009550947] [2023-11-26 11:44:21,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:21,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:44:21,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:21,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:44:21,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:44:21,478 INFO L87 Difference]: Start difference. First operand 1757 states and 2590 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:44:22,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:22,908 INFO L93 Difference]: Finished difference Result 1839 states and 2733 transitions. [2023-11-26 11:44:22,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:44:22,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2023-11-26 11:44:22,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:22,932 INFO L225 Difference]: With dead ends: 1839 [2023-11-26 11:44:22,932 INFO L226 Difference]: Without dead ends: 1836 [2023-11-26 11:44:22,934 INFO L412 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 [2023-11-26 11:44:22,937 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 774 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:22,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 1055 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-26 11:44:22,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2023-11-26 11:44:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1756. [2023-11-26 11:44:23,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1247 states have (on average 1.4474739374498797) internal successors, (1805), 1261 states have internal predecessors, (1805), 393 states have call successors, (393), 116 states have call predecessors, (393), 115 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390) [2023-11-26 11:44:23,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2588 transitions. [2023-11-26 11:44:23,165 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2588 transitions. Word has length 28 [2023-11-26 11:44:23,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:23,166 INFO L495 AbstractCegarLoop]: Abstraction has 1756 states and 2588 transitions. [2023-11-26 11:44:23,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:44:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2588 transitions. [2023-11-26 11:44:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-26 11:44:23,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:23,168 INFO L195 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] [2023-11-26 11:44:23,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:44:23,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:23,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash 728585227, now seen corresponding path program 1 times [2023-11-26 11:44:23,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:23,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934421864] [2023-11-26 11:44:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:24,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:24,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934421864] [2023-11-26 11:44:24,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934421864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:24,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:24,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:44:24,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142706038] [2023-11-26 11:44:24,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:24,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:44:24,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:24,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:44:24,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:44:24,345 INFO L87 Difference]: Start difference. First operand 1756 states and 2588 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:44:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:26,320 INFO L93 Difference]: Finished difference Result 4976 states and 7384 transitions. [2023-11-26 11:44:26,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:44:26,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-11-26 11:44:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:26,347 INFO L225 Difference]: With dead ends: 4976 [2023-11-26 11:44:26,347 INFO L226 Difference]: Without dead ends: 3213 [2023-11-26 11:44:26,357 INFO L412 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 [2023-11-26 11:44:26,358 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 781 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:26,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 1559 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-26 11:44:26,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3213 states. [2023-11-26 11:44:26,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3213 to 3114. [2023-11-26 11:44:26,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 2209 states have (on average 1.4418288818469895) internal successors, (3185), 2246 states have internal predecessors, (3185), 709 states have call successors, (709), 209 states have call predecessors, (709), 195 states have return successors, (703), 682 states have call predecessors, (703), 699 states have call successors, (703) [2023-11-26 11:44:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 4597 transitions. [2023-11-26 11:44:26,589 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 4597 transitions. Word has length 29 [2023-11-26 11:44:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:26,590 INFO L495 AbstractCegarLoop]: Abstraction has 3114 states and 4597 transitions. [2023-11-26 11:44:26,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:44:26,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 4597 transitions. [2023-11-26 11:44:26,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:44:26,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:26,595 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:26,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:44:26,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:26,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:26,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1071231765, now seen corresponding path program 1 times [2023-11-26 11:44:26,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:26,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441167808] [2023-11-26 11:44:26,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:26,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 11:44:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 11:44:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:44:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 11:44:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:29,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:29,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:29,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441167808] [2023-11-26 11:44:29,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441167808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:29,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:29,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:29,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935147623] [2023-11-26 11:44:29,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:29,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:29,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:29,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:29,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:29,524 INFO L87 Difference]: Start difference. First operand 3114 states and 4597 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)