./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--input--touchscreen--tsc2005.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--touchscreen--tsc2005.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e6cb9575d01b247a38f631016ebb8c3cacd422c61aaebbf8be9e6e4657d498f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:09:59,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:09:59,985 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:09:59,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:09:59,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:00,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:00,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:00,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:00,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:00,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:00,031 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:00,031 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:00,032 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:00,043 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:00,043 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:00,044 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:00,046 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:00,048 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:00,048 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:00,049 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:00,050 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:00,051 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:00,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:00,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:00,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:00,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:00,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:00,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:00,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:00,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:00,057 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:00,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:00,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:00,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:00,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:00,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:00,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:00,059 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:00,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:00,059 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:00,059 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:00,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:00,060 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e6cb9575d01b247a38f631016ebb8c3cacd422c61aaebbf8be9e6e4657d498f [2023-11-12 00:10:00,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:00,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:00,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:00,366 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:00,367 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:00,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--touchscreen--tsc2005.ko-entry_point.cil.out.i [2023-11-12 00:10:03,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:04,223 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:04,225 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--touchscreen--tsc2005.ko-entry_point.cil.out.i [2023-11-12 00:10:04,270 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/data/678944917/a053f0f27b8a4b7594b773b1ee83cfe4/FLAG5d14492eb [2023-11-12 00:10:04,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/data/678944917/a053f0f27b8a4b7594b773b1ee83cfe4 [2023-11-12 00:10:04,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:04,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:04,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:04,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:04,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:04,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:04" (1/1) ... [2023-11-12 00:10:04,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b65986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:04, skipping insertion in model container [2023-11-12 00:10:04,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:04" (1/1) ... [2023-11-12 00:10:04,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:06,268 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_69bef788-f18a-4da5-802e-814e56766032/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--touchscreen--tsc2005.ko-entry_point.cil.out.i[172920,172933] [2023-11-12 00:10:06,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:06,516 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:06,786 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_69bef788-f18a-4da5-802e-814e56766032/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--input--touchscreen--tsc2005.ko-entry_point.cil.out.i[172920,172933] [2023-11-12 00:10:06,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:06,933 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:06,942 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:06,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06 WrapperNode [2023-11-12 00:10:06,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:06,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:06,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:06,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:06,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,222 INFO L138 Inliner]: procedures = 262, calls = 943, calls flagged for inlining = 102, calls inlined = 94, statements flattened = 2428 [2023-11-12 00:10:07,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:07,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:07,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:07,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:07,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,486 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:07,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:07,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:07,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:07,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (1/1) ... [2023-11-12 00:10:07,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:07,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:07,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:07,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bef788-f18a-4da5-802e-814e56766032/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_read [2023-11-12 00:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_read [2023-11-12 00:10:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:10:07,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:10:07,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:10:07,598 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-12 00:10:07,598 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-12 00:10:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:10:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-12 00:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-12 00:10:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-11-12 00:10:07,601 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-11-12 00:10:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-12 00:10:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-12 00:10:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:10:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:10:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure of_property_read_u32 [2023-11-12 00:10:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure of_property_read_u32 [2023-11-12 00:10:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_tsc2005 [2023-11-12 00:10:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_tsc2005 [2023-11-12 00:10:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:10:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:10:07,677 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-12 00:10:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-12 00:10:07,677 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2023-11-12 00:10:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2023-11-12 00:10:07,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:10:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:10:07,677 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2023-11-12 00:10:07,677 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2023-11-12 00:10:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:10:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:10:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:10:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:10:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:10:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:10:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2023-11-12 00:10:07,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2023-11-12 00:10:07,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tsc2005 [2023-11-12 00:10:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tsc2005 [2023-11-12 00:10:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-12 00:10:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-12 00:10:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:10:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 00:10:07,679 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 00:10:07,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:10:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_stop_scan [2023-11-12 00:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_stop_scan [2023-11-12 00:10:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_write [2023-11-12 00:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_write [2023-11-12 00:10:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:10:07,680 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:10:07,680 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:10:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_cmd [2023-11-12 00:10:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_cmd [2023-11-12 00:10:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-12 00:10:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-12 00:10:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:10:07,681 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-12 00:10:07,681 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-12 00:10:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:10:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_esd_work [2023-11-12 00:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_esd_work [2023-11-12 00:10:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 00:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 00:10:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2023-11-12 00:10:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2023-11-12 00:10:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_suspend [2023-11-12 00:10:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_suspend [2023-11-12 00:10:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-12 00:10:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-12 00:10:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2023-11-12 00:10:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2023-11-12 00:10:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-12 00:10:07,683 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-12 00:10:07,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-12 00:10:07,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-12 00:10:07,684 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2023-11-12 00:10:07,684 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2023-11-12 00:10:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:10:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-12 00:10:07,688 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-12 00:10:07,688 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-12 00:10:07,688 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-12 00:10:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2023-11-12 00:10:07,690 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2023-11-12 00:10:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2023-11-12 00:10:07,690 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2023-11-12 00:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2023-11-12 00:10:07,691 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2023-11-12 00:10:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_start_scan [2023-11-12 00:10:07,692 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_start_scan [2023-11-12 00:10:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_resume [2023-11-12 00:10:07,692 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_resume [2023-11-12 00:10:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:10:07,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:10:07,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:10:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 00:10:07,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 00:10:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-12 00:10:07,693 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-12 00:10:07,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:10:07,694 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2023-11-12 00:10:07,694 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2023-11-12 00:10:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:10:07,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:10:07,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:10:07,696 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-12 00:10:07,696 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-12 00:10:07,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-12 00:10:07,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-12 00:10:07,697 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-12 00:10:07,697 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-12 00:10:07,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2023-11-12 00:10:07,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2023-11-12 00:10:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_setup_read [2023-11-12 00:10:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_setup_read [2023-11-12 00:10:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure __tsc2005_enable [2023-11-12 00:10:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __tsc2005_enable [2023-11-12 00:10:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2023-11-12 00:10:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2023-11-12 00:10:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tsc2005 [2023-11-12 00:10:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tsc2005 [2023-11-12 00:10:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_irq_thread [2023-11-12 00:10:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_irq_thread [2023-11-12 00:10:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure __tsc2005_disable [2023-11-12 00:10:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __tsc2005_disable [2023-11-12 00:10:07,701 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_update_pen_state [2023-11-12 00:10:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_update_pen_state [2023-11-12 00:10:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-12 00:10:07,703 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-12 00:10:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-12 00:10:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-12 00:10:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure tsc2005_set_reset [2023-11-12 00:10:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure tsc2005_set_reset [2023-11-12 00:10:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-12 00:10:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-12 00:10:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:07,706 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:10:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:10:08,309 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:08,314 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:08,770 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:10:15,892 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:17,126 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:17,126 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:17,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:17 BoogieIcfgContainer [2023-11-12 00:10:17,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:17,137 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:17,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:17,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:17,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:04" (1/3) ... [2023-11-12 00:10:17,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a96d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:17, skipping insertion in model container [2023-11-12 00:10:17,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:06" (2/3) ... [2023-11-12 00:10:17,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a96d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:17, skipping insertion in model container [2023-11-12 00:10:17,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:17" (3/3) ... [2023-11-12 00:10:17,153 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--touchscreen--tsc2005.ko-entry_point.cil.out.i [2023-11-12 00:10:17,181 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:17,181 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:10:17,293 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:17,305 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=FINITE_AUTOMATA, 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;@427036af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:17,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:10:17,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 700 states, 421 states have (on average 1.3847980997624703) internal successors, (583), 452 states have internal predecessors, (583), 210 states have call successors, (210), 68 states have call predecessors, (210), 67 states have return successors, (198), 194 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-12 00:10:17,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-12 00:10:17,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:17,341 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:17,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:17,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:17,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1412649707, now seen corresponding path program 1 times [2023-11-12 00:10:17,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:17,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746414413] [2023-11-12 00:10:17,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:17,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-12 00:10:18,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746414413] [2023-11-12 00:10:18,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746414413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:18,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:18,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:18,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559519453] [2023-11-12 00:10:18,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:18,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:18,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:18,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:18,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:18,656 INFO L87 Difference]: Start difference. First operand has 700 states, 421 states have (on average 1.3847980997624703) internal successors, (583), 452 states have internal predecessors, (583), 210 states have call successors, (210), 68 states have call predecessors, (210), 67 states have return successors, (198), 194 states have call predecessors, (198), 198 states have call successors, (198) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:21,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:22,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:25,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:27,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:29,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:29,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:29,728 INFO L93 Difference]: Finished difference Result 1896 states and 2740 transitions. [2023-11-12 00:10:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:29,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2023-11-12 00:10:29,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:29,765 INFO L225 Difference]: With dead ends: 1896 [2023-11-12 00:10:29,765 INFO L226 Difference]: Without dead ends: 1180 [2023-11-12 00:10:29,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:29,781 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 750 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:29,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1735 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2023-11-12 00:10:29,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2023-11-12 00:10:29,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1175. [2023-11-12 00:10:29,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 740 states have (on average 1.3756756756756756) internal successors, (1018), 771 states have internal predecessors, (1018), 322 states have call successors, (322), 117 states have call predecessors, (322), 112 states have return successors, (323), 297 states have call predecessors, (323), 315 states have call successors, (323) [2023-11-12 00:10:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1663 transitions. [2023-11-12 00:10:29,963 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1663 transitions. Word has length 83 [2023-11-12 00:10:29,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:29,964 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1663 transitions. [2023-11-12 00:10:29,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:10:29,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1663 transitions. [2023-11-12 00:10:29,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-12 00:10:29,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:29,991 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:29,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:10:29,991 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:29,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:29,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1414583333, now seen corresponding path program 1 times [2023-11-12 00:10:29,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:29,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035732103] [2023-11-12 00:10:29,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:29,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-12 00:10:30,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:30,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035732103] [2023-11-12 00:10:30,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035732103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:30,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:30,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:30,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713338494] [2023-11-12 00:10:30,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:30,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:30,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:30,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:30,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:30,292 INFO L87 Difference]: Start difference. First operand 1175 states and 1663 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:10:32,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:34,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:37,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:39,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:41,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:43,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:43,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:43,558 INFO L93 Difference]: Finished difference Result 3458 states and 4897 transitions. [2023-11-12 00:10:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:43,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 82 [2023-11-12 00:10:43,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:43,579 INFO L225 Difference]: With dead ends: 3458 [2023-11-12 00:10:43,580 INFO L226 Difference]: Without dead ends: 2296 [2023-11-12 00:10:43,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:43,587 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 895 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:43,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 1651 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 258 Invalid, 6 Unknown, 0 Unchecked, 13.1s Time] [2023-11-12 00:10:43,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2023-11-12 00:10:43,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2291. [2023-11-12 00:10:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1447 states have (on average 1.373876986869385) internal successors, (1988), 1503 states have internal predecessors, (1988), 623 states have call successors, (623), 229 states have call predecessors, (623), 220 states have return successors, (632), 580 states have call predecessors, (632), 616 states have call successors, (632) [2023-11-12 00:10:43,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3243 transitions. [2023-11-12 00:10:43,799 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3243 transitions. Word has length 82 [2023-11-12 00:10:43,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:43,802 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3243 transitions. [2023-11-12 00:10:43,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-12 00:10:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3243 transitions. [2023-11-12 00:10:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-12 00:10:43,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:43,807 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:43,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:10:43,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:43,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1150565479, now seen corresponding path program 1 times [2023-11-12 00:10:43,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:43,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884954280] [2023-11-12 00:10:43,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:43,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-12 00:10:44,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:44,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884954280] [2023-11-12 00:10:44,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884954280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:44,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:44,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:44,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225808518] [2023-11-12 00:10:44,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:44,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:44,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:44,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:44,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:44,021 INFO L87 Difference]: Start difference. First operand 2291 states and 3243 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:10:46,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:48,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:48,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:48,621 INFO L93 Difference]: Finished difference Result 2293 states and 3244 transitions. [2023-11-12 00:10:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:48,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-11-12 00:10:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:48,640 INFO L225 Difference]: With dead ends: 2293 [2023-11-12 00:10:48,640 INFO L226 Difference]: Without dead ends: 2290 [2023-11-12 00:10:48,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:48,651 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 926 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:48,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 826 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-11-12 00:10:48,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2023-11-12 00:10:48,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2290. [2023-11-12 00:10:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 1447 states have (on average 1.372494816862474) internal successors, (1986), 1502 states have internal predecessors, (1986), 622 states have call successors, (622), 229 states have call predecessors, (622), 220 states have return successors, (632), 580 states have call predecessors, (632), 616 states have call successors, (632) [2023-11-12 00:10:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3240 transitions. [2023-11-12 00:10:48,891 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3240 transitions. Word has length 84 [2023-11-12 00:10:48,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:48,894 INFO L495 AbstractCegarLoop]: Abstraction has 2290 states and 3240 transitions. [2023-11-12 00:10:48,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:10:48,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3240 transitions. [2023-11-12 00:10:48,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 00:10:48,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:48,900 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:48,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:10:48,900 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:48,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:48,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1308082673, now seen corresponding path program 1 times [2023-11-12 00:10:48,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:48,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813150531] [2023-11-12 00:10:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:48,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-12 00:10:49,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:49,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813150531] [2023-11-12 00:10:49,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813150531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:49,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:49,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:49,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660717076] [2023-11-12 00:10:49,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:49,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:49,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:49,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:49,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:49,132 INFO L87 Difference]: Start difference. First operand 2290 states and 3240 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:10:51,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:53,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:53,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:53,818 INFO L93 Difference]: Finished difference Result 2292 states and 3241 transitions. [2023-11-12 00:10:53,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:53,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2023-11-12 00:10:53,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:53,836 INFO L225 Difference]: With dead ends: 2292 [2023-11-12 00:10:53,837 INFO L226 Difference]: Without dead ends: 2289 [2023-11-12 00:10:53,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:53,840 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 923 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:53,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 824 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2023-11-12 00:10:53,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2023-11-12 00:10:54,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2289. [2023-11-12 00:10:54,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 1447 states have (on average 1.3711126468555632) internal successors, (1984), 1501 states have internal predecessors, (1984), 621 states have call successors, (621), 229 states have call predecessors, (621), 220 states have return successors, (632), 580 states have call predecessors, (632), 616 states have call successors, (632) [2023-11-12 00:10:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3237 transitions. [2023-11-12 00:10:54,035 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3237 transitions. Word has length 85 [2023-11-12 00:10:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:54,036 INFO L495 AbstractCegarLoop]: Abstraction has 2289 states and 3237 transitions. [2023-11-12 00:10:54,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:10:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3237 transitions. [2023-11-12 00:10:54,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-12 00:10:54,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:54,039 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:54,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:10:54,040 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:54,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:54,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1896143524, now seen corresponding path program 1 times [2023-11-12 00:10:54,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:54,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665573432] [2023-11-12 00:10:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:54,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:54,182 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-12 00:10:54,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:54,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665573432] [2023-11-12 00:10:54,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665573432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:54,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:54,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:54,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880620243] [2023-11-12 00:10:54,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:54,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:54,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:54,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:54,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:54,185 INFO L87 Difference]: Start difference. First operand 2289 states and 3237 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:10:56,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:58,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:58,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:58,944 INFO L93 Difference]: Finished difference Result 2291 states and 3238 transitions. [2023-11-12 00:10:58,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:58,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2023-11-12 00:10:58,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:58,963 INFO L225 Difference]: With dead ends: 2291 [2023-11-12 00:10:58,963 INFO L226 Difference]: Without dead ends: 2284 [2023-11-12 00:10:58,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:58,966 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 920 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:58,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 822 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2023-11-12 00:10:58,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2023-11-12 00:10:59,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 2284. [2023-11-12 00:10:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 1443 states have (on average 1.37006237006237) internal successors, (1977), 1496 states have internal predecessors, (1977), 620 states have call successors, (620), 229 states have call predecessors, (620), 220 states have return successors, (632), 580 states have call predecessors, (632), 616 states have call successors, (632) [2023-11-12 00:10:59,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3229 transitions. [2023-11-12 00:10:59,187 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3229 transitions. Word has length 86 [2023-11-12 00:10:59,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:59,189 INFO L495 AbstractCegarLoop]: Abstraction has 2284 states and 3229 transitions. [2023-11-12 00:10:59,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 00:10:59,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3229 transitions. [2023-11-12 00:10:59,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-12 00:10:59,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:59,193 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:59,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:10:59,194 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:10:59,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:59,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1009135748, now seen corresponding path program 1 times [2023-11-12 00:10:59,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:59,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877633910] [2023-11-12 00:10:59,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:59,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-12 00:10:59,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:59,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877633910] [2023-11-12 00:10:59,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877633910] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:59,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:59,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235525477] [2023-11-12 00:10:59,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:59,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:59,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:59,539 INFO L87 Difference]: Start difference. First operand 2284 states and 3229 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)