./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--power--bq2415x_charger.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire --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 b25f9963439cd615a7d1d4e0c139938ebd46311bccf69b593265dc59a80b8946 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:37,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:38,011 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:34:38,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:38,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:38,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:38,046 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:38,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:38,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:38,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:38,048 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:38,049 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:38,049 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:38,050 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:38,050 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:38,051 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:38,051 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:38,052 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:38,052 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:38,053 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:38,053 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:38,054 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:38,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:38,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:38,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:38,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:38,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:38,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:38,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:38,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:38,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:38,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:38,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:38,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:38,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:38,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:38,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:38,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:38,061 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:38,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:38,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:38,061 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:38,062 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:38,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:38,062 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_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b25f9963439cd615a7d1d4e0c139938ebd46311bccf69b593265dc59a80b8946 [2023-11-23 20:34:38,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:38,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:38,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:38,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:38,351 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:38,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i [2023-11-23 20:34:41,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:42,145 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:42,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i [2023-11-23 20:34:42,197 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/data/1a8c69ac4/1d96334e85ac4a20afb3b006d5860631/FLAG93ae4ec78 [2023-11-23 20:34:42,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/data/1a8c69ac4/1d96334e85ac4a20afb3b006d5860631 [2023-11-23 20:34:42,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:42,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:42,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:42,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:42,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:42,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:42" (1/1) ... [2023-11-23 20:34:42,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1679c606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:42, skipping insertion in model container [2023-11-23 20:34:42,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:42" (1/1) ... [2023-11-23 20:34:42,392 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:44,154 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_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i[216479,216492] [2023-11-23 20:34:44,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:44,506 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:44,870 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_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i[216479,216492] [2023-11-23 20:34:44,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:45,105 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:45,105 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:45,114 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:45,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45 WrapperNode [2023-11-23 20:34:45,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:45,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:45,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:45,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:45,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,401 INFO L138 Inliner]: procedures = 269, calls = 2233, calls flagged for inlining = 94, calls inlined = 86, statements flattened = 4372 [2023-11-23 20:34:45,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:45,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:45,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:45,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:45,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:45,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:45,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:45,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:45,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (1/1) ... [2023-11-23 20:34:45,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:45,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:45,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:45,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06aa3a91-0115-450d-b75c-e2cd1f8e2c50/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_notify [2023-11-23 20:34:45,816 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_notify [2023-11-23 20:34:45,816 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_read [2023-11-23 20:34:45,816 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_read [2023-11-23 20:34:45,817 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 20:34:45,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:34:45,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:34:45,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:34:45,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:34:45,819 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2023-11-23 20:34:45,819 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2023-11-23 20:34:45,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:34:45,819 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:34:45,819 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_read_mask [2023-11-23 20:34:45,819 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_read_mask [2023-11-23 20:34:45,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:34:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:34:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_reset_chip [2023-11-23 20:34:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_reset_chip [2023-11-23 20:34:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 20:34:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 20:34:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_set_enable [2023-11-23 20:34:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_set_enable [2023-11-23 20:34:45,822 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_exit [2023-11-23 20:34:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_exit [2023-11-23 20:34:45,823 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:34:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:34:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:34:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:34:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-23 20:34:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-23 20:34:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_current_limit [2023-11-23 20:34:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_current_limit [2023-11-23 20:34:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_write_mask [2023-11-23 20:34:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_write_mask [2023-11-23 20:34:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_show_enable [2023-11-23 20:34:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_show_enable [2023-11-23 20:34:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_write_bit [2023-11-23 20:34:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_write_bit [2023-11-23 20:34:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:34:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:34:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_charge_current [2023-11-23 20:34:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_charge_current [2023-11-23 20:34:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_timer_work [2023-11-23 20:34:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_timer_work [2023-11-23 20:34:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_write [2023-11-23 20:34:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_write [2023-11-23 20:34:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:34:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_bq2415x_id_mutex [2023-11-23 20:34:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_bq2415x_id_mutex [2023-11-23 20:34:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:34:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_show_limit [2023-11-23 20:34:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_show_limit [2023-11-23 20:34:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure kasprintf [2023-11-23 20:34:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure kasprintf [2023-11-23 20:34:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:34:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:34:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:34:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_detect_chip [2023-11-23 20:34:45,829 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_detect_chip [2023-11-23 20:34:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-23 20:34:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-23 20:34:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_autotimer [2023-11-23 20:34:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_autotimer [2023-11-23 20:34:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:34:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-11-23 20:34:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-11-23 20:34:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:34:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:34:45,832 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:34:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_weak_battery_voltage [2023-11-23 20:34:45,832 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_weak_battery_voltage [2023-11-23 20:34:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_defaults [2023-11-23 20:34:45,832 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_defaults [2023-11-23 20:34:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:34:45,832 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_i2c_read_bit [2023-11-23 20:34:45,833 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_i2c_read_bit [2023-11-23 20:34:45,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_bq2415x_i2c_mutex [2023-11-23 20:34:45,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_bq2415x_i2c_mutex [2023-11-23 20:34:45,833 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 20:34:45,833 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 20:34:45,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:34:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:34:45,834 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:34:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:34:45,834 INFO L130 BoogieDeclarations]: Found specification of procedure to_acpi_node [2023-11-23 20:34:45,835 INFO L138 BoogieDeclarations]: Found implementation of procedure to_acpi_node [2023-11-23 20:34:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure device_property_read_u32 [2023-11-23 20:34:45,835 INFO L138 BoogieDeclarations]: Found implementation of procedure device_property_read_u32 [2023-11-23 20:34:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_device_handle [2023-11-23 20:34:45,835 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_device_handle [2023-11-23 20:34:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_bq2415x_i2c_mutex [2023-11-23 20:34:45,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_bq2415x_i2c_mutex [2023-11-23 20:34:45,835 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:34:45,835 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:34:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_termination_current [2023-11-23 20:34:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_termination_current [2023-11-23 20:34:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:34:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 20:34:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 20:34:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2023-11-23 20:34:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2023-11-23 20:34:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:34:45,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:34:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure power_supply_put [2023-11-23 20:34:45,837 INFO L138 BoogieDeclarations]: Found implementation of procedure power_supply_put [2023-11-23 20:34:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_timer_error [2023-11-23 20:34:45,838 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_timer_error [2023-11-23 20:34:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_battery_regulation_voltage [2023-11-23 20:34:45,838 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_battery_regulation_voltage [2023-11-23 20:34:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:34:45,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:34:45,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:34:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 20:34:45,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 20:34:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure power_supply_get_drvdata [2023-11-23 20:34:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure power_supply_get_drvdata [2023-11-23 20:34:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_bq2415x_id_mutex [2023-11-23 20:34:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_bq2415x_id_mutex [2023-11-23 20:34:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:34:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_bq2415x_timer_mutex [2023-11-23 20:34:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_bq2415x_timer_mutex [2023-11-23 20:34:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_set_mode [2023-11-23 20:34:45,841 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_set_mode [2023-11-23 20:34:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_set_limit [2023-11-23 20:34:45,841 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_set_limit [2023-11-23 20:34:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 20:34:45,841 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 20:34:45,841 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_power_supply_exit [2023-11-23 20:34:45,842 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_power_supply_exit [2023-11-23 20:34:45,842 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_show_status [2023-11-23 20:34:45,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_show_status [2023-11-23 20:34:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_sysfs_print_reg [2023-11-23 20:34:45,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_sysfs_print_reg [2023-11-23 20:34:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_bq2415x_timer_mutex [2023-11-23 20:34:45,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_bq2415x_timer_mutex [2023-11-23 20:34:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-23 20:34:45,843 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-23 20:34:45,843 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-23 20:34:45,843 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-23 20:34:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure bq2415x_exec_command [2023-11-23 20:34:45,848 INFO L138 BoogieDeclarations]: Found implementation of procedure bq2415x_exec_command [2023-11-23 20:34:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 20:34:45,849 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 20:34:46,623 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:46,627 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:47,651 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:34:57,183 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:58,624 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:58,631 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:58,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:58 BoogieIcfgContainer [2023-11-23 20:34:58,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:58,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:58,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:58,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:58,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:42" (1/3) ... [2023-11-23 20:34:58,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e37461f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:58, skipping insertion in model container [2023-11-23 20:34:58,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:45" (2/3) ... [2023-11-23 20:34:58,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e37461f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:58, skipping insertion in model container [2023-11-23 20:34:58,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:58" (3/3) ... [2023-11-23 20:34:58,647 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--power--bq2415x_charger.ko-entry_point.cil.out.i [2023-11-23 20:34:58,668 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:58,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:58,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:58,780 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;@49ccde90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:58,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:58,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 1272 states, 807 states have (on average 1.41635687732342) internal successors, (1143), 857 states have internal predecessors, (1143), 398 states have call successors, (398), 66 states have call predecessors, (398), 65 states have return successors, (377), 366 states have call predecessors, (377), 377 states have call successors, (377) [2023-11-23 20:34:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-11-23 20:34:58,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:58,846 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:58,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:58,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:58,857 INFO L85 PathProgramCache]: Analyzing trace with hash 567347422, now seen corresponding path program 1 times [2023-11-23 20:34:58,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:58,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963023048] [2023-11-23 20:34:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:58,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7998 trivial. 0 not checked. [2023-11-23 20:35:11,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963023048] [2023-11-23 20:35:11,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963023048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:11,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:11,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:35:11,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306305784] [2023-11-23 20:35:11,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:11,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:35:11,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:11,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:35:11,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:35:11,745 INFO L87 Difference]: Start difference. First operand has 1272 states, 807 states have (on average 1.41635687732342) internal successors, (1143), 857 states have internal predecessors, (1143), 398 states have call successors, (398), 66 states have call predecessors, (398), 65 states have return successors, (377), 366 states have call predecessors, (377), 377 states have call successors, (377) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2023-11-23 20:35:13,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:16,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:16,291 INFO L93 Difference]: Finished difference Result 3331 states and 5334 transitions. [2023-11-23 20:35:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:35:16,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 556 [2023-11-23 20:35:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:16,346 INFO L225 Difference]: With dead ends: 3331 [2023-11-23 20:35:16,346 INFO L226 Difference]: Without dead ends: 2120 [2023-11-23 20:35:16,368 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 [2023-11-23 20:35:16,372 INFO L413 NwaCegarLoop]: 1767 mSDtfsCounter, 1500 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 3373 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:16,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 3373 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 273 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-11-23 20:35:16,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2023-11-23 20:35:16,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2100. [2023-11-23 20:35:16,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1382 states have (on average 1.406657018813314) internal successors, (1944), 1423 states have internal predecessors, (1944), 604 states have call successors, (604), 114 states have call predecessors, (604), 113 states have return successors, (592), 569 states have call predecessors, (592), 592 states have call successors, (592) [2023-11-23 20:35:16,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 3140 transitions. [2023-11-23 20:35:16,648 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 3140 transitions. Word has length 556 [2023-11-23 20:35:16,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:16,654 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 3140 transitions. [2023-11-23 20:35:16,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2023-11-23 20:35:16,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 3140 transitions. [2023-11-23 20:35:16,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-11-23 20:35:16,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:16,676 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:16,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:16,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:16,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:16,678 INFO L85 PathProgramCache]: Analyzing trace with hash -851156984, now seen corresponding path program 1 times [2023-11-23 20:35:16,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:16,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903257257] [2023-11-23 20:35:16,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:16,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 7998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7998 trivial. 0 not checked. [2023-11-23 20:35:27,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:35:27,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903257257] [2023-11-23 20:35:27,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903257257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:27,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:27,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:35:27,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365762655] [2023-11-23 20:35:27,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:27,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:35:27,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:35:27,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:35:27,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:35:27,939 INFO L87 Difference]: Start difference. First operand 2100 states and 3140 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2023-11-23 20:35:30,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []