./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ --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 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:06:20,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:06:20,184 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:06:20,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:06:20,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:06:20,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:06:20,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:06:20,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:06:20,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:06:20,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:06:20,217 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:06:20,218 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:06:20,218 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:06:20,219 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:06:20,220 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:06:20,220 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:06:20,221 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:06:20,221 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:06:20,222 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:06:20,223 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:06:20,223 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:06:20,228 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:06:20,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:06:20,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:06:20,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:06:20,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:06:20,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:06:20,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:06:20,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:06:20,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:06:20,232 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:06:20,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:06:20,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:06:20,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:20,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:06:20,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:06:20,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:06:20,235 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:06:20,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:06:20,236 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:06:20,236 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:06:20,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:06:20,237 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_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 [2023-11-19 05:06:20,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:06:20,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:06:20,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:06:20,555 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:06:20,556 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:06:20,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-19 05:06:23,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:06:24,302 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:06:24,303 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-19 05:06:24,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/data/ead1ae68b/e85a0e58cacc46849aefab334b1ad7c6/FLAG367c068c2 [2023-11-19 05:06:24,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/data/ead1ae68b/e85a0e58cacc46849aefab334b1ad7c6 [2023-11-19 05:06:24,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:06:24,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:06:24,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:24,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:06:24,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:06:24,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:24" (1/1) ... [2023-11-19 05:06:24,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fbb3a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:24, skipping insertion in model container [2023-11-19 05:06:24,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:24" (1/1) ... [2023-11-19 05:06:24,552 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:06:26,099 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_217e649c-5ca4-42d1-b60e-069fc8d5bc27/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2023-11-19 05:06:26,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:26,177 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:06:26,505 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_217e649c-5ca4-42d1-b60e-069fc8d5bc27/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2023-11-19 05:06:26,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:26,638 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:06:26,646 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:06:26,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26 WrapperNode [2023-11-19 05:06:26,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:26,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:26,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:06:26,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:06:26,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:26,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:26,902 INFO L138 Inliner]: procedures = 146, calls = 1243, calls flagged for inlining = 65, calls inlined = 65, statements flattened = 3155 [2023-11-19 05:06:26,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:06:26,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:06:26,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:06:26,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:06:26,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:26,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:26,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:26,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:27,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:27,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:27,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:27,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:27,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:06:27,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:06:27,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:06:27,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:06:27,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (1/1) ... [2023-11-19 05:06:27,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:27,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:06:27,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:06:27,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_217e649c-5ca4-42d1-b60e-069fc8d5bc27/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:06:27,311 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-19 05:06:27,312 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-19 05:06:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:06:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:06:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:06:27,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:06:27,313 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-19 05:06:27,313 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-19 05:06:27,314 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-19 05:06:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-19 05:06:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-19 05:06:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-19 05:06:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-19 05:06:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-19 05:06:27,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:06:27,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:06:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-19 05:06:27,316 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-19 05:06:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:06:27,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:06:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-19 05:06:27,317 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-19 05:06:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-19 05:06:27,318 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-19 05:06:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-19 05:06:27,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-19 05:06:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:06:27,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:06:27,319 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 05:06:27,319 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 05:06:27,320 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-19 05:06:27,320 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-19 05:06:27,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:06:27,321 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:06:27,321 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:06:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 05:06:27,322 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 05:06:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2023-11-19 05:06:27,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2023-11-19 05:06:27,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 05:06:27,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 05:06:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:06:27,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:06:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-19 05:06:27,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-19 05:06:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-19 05:06:27,323 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-19 05:06:27,323 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-19 05:06:27,324 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-19 05:06:27,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:06:27,324 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-19 05:06:27,324 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-19 05:06:27,324 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-19 05:06:27,324 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-19 05:06:27,324 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-19 05:06:27,325 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-19 05:06:27,325 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-19 05:06:27,325 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-19 05:06:27,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:06:27,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:06:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-19 05:06:27,326 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-19 05:06:27,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:06:27,327 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-19 05:06:27,328 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-19 05:06:27,328 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-19 05:06:27,328 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-19 05:06:27,328 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-19 05:06:27,328 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-19 05:06:27,328 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-19 05:06:27,328 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-19 05:06:27,328 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-19 05:06:27,329 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-19 05:06:27,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:06:27,329 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:06:27,329 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:06:27,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:06:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:06:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-19 05:06:27,330 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-19 05:06:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:06:27,330 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:06:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-19 05:06:27,330 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-19 05:06:27,331 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:06:27,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:06:27,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-19 05:06:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-19 05:06:27,332 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:06:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:06:27,332 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:06:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:06:27,332 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 05:06:27,332 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 05:06:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:06:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 05:06:27,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 05:06:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-19 05:06:27,333 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-19 05:06:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-19 05:06:27,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-19 05:06:27,333 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-19 05:06:27,334 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-19 05:06:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-19 05:06:27,334 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-19 05:06:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-19 05:06:27,334 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-19 05:06:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-19 05:06:27,334 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-19 05:06:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:06:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-19 05:06:27,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:06:27,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:06:28,015 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:06:28,018 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:06:34,625 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:06:36,882 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:06:36,883 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:06:36,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:36 BoogieIcfgContainer [2023-11-19 05:06:36,896 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:06:36,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:06:36,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:06:36,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:06:36,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:06:24" (1/3) ... [2023-11-19 05:06:36,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a65513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:36, skipping insertion in model container [2023-11-19 05:06:36,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:26" (2/3) ... [2023-11-19 05:06:36,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a65513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:06:36, skipping insertion in model container [2023-11-19 05:06:36,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:06:36" (3/3) ... [2023-11-19 05:06:36,910 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-19 05:06:36,933 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:06:36,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:06:37,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:06:37,040 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;@7885a4c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:06:37,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:06:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 865 states, 571 states have (on average 1.3747810858143608) internal successors, (785), 579 states have internal predecessors, (785), 244 states have call successors, (244), 48 states have call predecessors, (244), 48 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2023-11-19 05:06:37,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 05:06:37,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:06:37,097 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:06:37,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:06:37,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:06:37,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1872991709, now seen corresponding path program 1 times [2023-11-19 05:06:37,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:06:37,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286605453] [2023-11-19 05:06:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:06:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:06:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:06:40,092 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 05:06:40,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:06:40,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286605453] [2023-11-19 05:06:40,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286605453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:06:40,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:06:40,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 05:06:40,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102722288] [2023-11-19 05:06:40,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:06:40,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:06:40,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:06:40,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:06:40,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:06:40,161 INFO L87 Difference]: Start difference. First operand has 865 states, 571 states have (on average 1.3747810858143608) internal successors, (785), 579 states have internal predecessors, (785), 244 states have call successors, (244), 48 states have call predecessors, (244), 48 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) Second operand has 8 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-19 05:06:43,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:06:46,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:06:48,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:06:50,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:06:52,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:06:54,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:06:56,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:05,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:07,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:08,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:10,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:11,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:12,950 INFO L93 Difference]: Finished difference Result 1724 states and 2548 transitions. [2023-11-19 05:07:12,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:07:12,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 64 [2023-11-19 05:07:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:13,008 INFO L225 Difference]: With dead ends: 1724 [2023-11-19 05:07:13,013 INFO L226 Difference]: Without dead ends: 871 [2023-11-19 05:07:13,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:07:13,036 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 36 mSDsluCounter, 6031 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:13,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 7156 Invalid, 1732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1722 Invalid, 8 Unknown, 0 Unchecked, 32.4s Time] [2023-11-19 05:07:13,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-11-19 05:07:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 864. [2023-11-19 05:07:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 571 states have (on average 1.362521891418564) internal successors, (778), 578 states have internal predecessors, (778), 243 states have call successors, (243), 48 states have call predecessors, (243), 49 states have return successors, (246), 244 states have call predecessors, (246), 243 states have call successors, (246) [2023-11-19 05:07:13,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1267 transitions. [2023-11-19 05:07:13,247 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1267 transitions. Word has length 64 [2023-11-19 05:07:13,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:13,250 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1267 transitions. [2023-11-19 05:07:13,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-19 05:07:13,250 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1267 transitions. [2023-11-19 05:07:13,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 05:07:13,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:13,262 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:13,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:07:13,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:07:13,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:13,264 INFO L85 PathProgramCache]: Analyzing trace with hash 90538394, now seen corresponding path program 1 times [2023-11-19 05:07:13,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:07:13,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96996098] [2023-11-19 05:07:13,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:13,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:07:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:15,728 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 05:07:15,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:07:15,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96996098] [2023-11-19 05:07:15,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96996098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:15,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:15,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 05:07:15,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140377386] [2023-11-19 05:07:15,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:15,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:07:15,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:07:15,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:07:15,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:07:15,735 INFO L87 Difference]: Start difference. First operand 864 states and 1267 transitions. Second operand has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)