./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.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_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/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_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/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_523331e5-6ffe-42b5-84b3-dab4ddc824be/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 98c33dd4a8b9d397de123c51515d9ce94b0ce1f1fda3976c2bf2bd86eef00096 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:01,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:02,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:30:02,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:02,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:02,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:02,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:02,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:02,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:02,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:02,162 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:02,163 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:02,164 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:02,166 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:30:02,166 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:02,167 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:02,167 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:30:02,167 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:30:02,168 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:02,168 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:30:02,169 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:30:02,169 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:30:02,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:02,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:02,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:30:02,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:02,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:02,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:02,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:02,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:02,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:02,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:02,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:02,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:02,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:02,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:02,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:02,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:02,179 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:30:02,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:30:02,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:02,179 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:02,180 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:02,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:02,181 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_523331e5-6ffe-42b5-84b3-dab4ddc824be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c33dd4a8b9d397de123c51515d9ce94b0ce1f1fda3976c2bf2bd86eef00096 [2023-11-23 21:30:02,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:02,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:02,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:02,538 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:02,538 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:02,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2023-11-23 21:30:05,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:06,328 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:06,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2023-11-23 21:30:06,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/data/30162b6a4/b5e7b94badd646baa7567a8ae7d29d34/FLAG1f2b840ef [2023-11-23 21:30:06,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/data/30162b6a4/b5e7b94badd646baa7567a8ae7d29d34 [2023-11-23 21:30:06,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:06,396 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:06,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:06,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:06,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:06,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a74895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:06, skipping insertion in model container [2023-11-23 21:30:06,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:06" (1/1) ... [2023-11-23 21:30:06,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:08,306 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_523331e5-6ffe-42b5-84b3-dab4ddc824be/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2023-11-23 21:30:08,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:08,579 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:08,926 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_523331e5-6ffe-42b5-84b3-dab4ddc824be/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2023-11-23 21:30:08,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:09,293 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:30:09,301 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:09,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09 WrapperNode [2023-11-23 21:30:09,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:09,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:09,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:09,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:09,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:09,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:09,781 INFO L138 Inliner]: procedures = 206, calls = 3189, calls flagged for inlining = 90, calls inlined = 82, statements flattened = 8855 [2023-11-23 21:30:09,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:09,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:09,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:09,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:09,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:09,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:09,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:09,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:10,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:10,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:10,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:10,246 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:10,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:10,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:10,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:10,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:10,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (1/1) ... [2023-11-23 21:30:10,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:10,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:10,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:10,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523331e5-6ffe-42b5-84b3-dab4ddc824be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:10,371 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_read_value [2023-11-23 21:30:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_read_value [2023-11-23 21:30:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2023-11-23 21:30:10,372 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2023-11-23 21:30:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_detect [2023-11-23 21:30:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_detect [2023-11-23 21:30:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2023-11-23 21:30:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2023-11-23 21:30:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure store_beep [2023-11-23 21:30:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure store_beep [2023-11-23 21:30:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:30:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:30:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm [2023-11-23 21:30:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm [2023-11-23 21:30:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_min [2023-11-23 21:30:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_min [2023-11-23 21:30:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_div [2023-11-23 21:30:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_div [2023-11-23 21:30:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_FROM_REG [2023-11-23 21:30:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_FROM_REG [2023-11-23 21:30:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:30:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:30:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:30:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:30:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-23 21:30:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-23 21:30:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure show_sensor [2023-11-23 21:30:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure show_sensor [2023-11-23 21:30:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:30:10,381 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:30:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2023-11-23 21:30:10,381 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2023-11-23 21:30:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:30:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:30:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max_hyst [2023-11-23 21:30:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max_hyst [2023-11-23 21:30:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2023-11-23 21:30:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2023-11-23 21:30:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-11-23 21:30:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-11-23 21:30:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-11-23 21:30:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-11-23 21:30:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_isa_unregister [2023-11-23 21:30:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_isa_unregister [2023-11-23 21:30:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2023-11-23 21:30:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2023-11-23 21:30:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:30:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure show_beep [2023-11-23 21:30:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure show_beep [2023-11-23 21:30:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-11-23 21:30:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-11-23 21:30:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:30:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:30:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-23 21:30:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-23 21:30:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:30:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:30:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-23 21:30:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-23 21:30:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2023-11-23 21:30:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2023-11-23 21:30:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2023-11-23 21:30:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2023-11-23 21:30:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:30:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:30:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure store_sensor [2023-11-23 21:30:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure store_sensor [2023-11-23 21:30:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_update_device [2023-11-23 21:30:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_update_device [2023-11-23 21:30:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_remove_files [2023-11-23 21:30:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_remove_files [2023-11-23 21:30:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2023-11-23 21:30:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2023-11-23 21:30:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-23 21:30:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-23 21:30:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_max [2023-11-23 21:30:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_max [2023-11-23 21:30:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2023-11-23 21:30:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2023-11-23 21:30:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-23 21:30:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-23 21:30:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_w83781d_data [2023-11-23 21:30:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_w83781d_data [2023-11-23 21:30:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:30:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-23 21:30:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-23 21:30:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-11-23 21:30:10,396 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-11-23 21:30:10,396 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2023-11-23 21:30:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2023-11-23 21:30:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2023-11-23 21:30:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2023-11-23 21:30:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2023-11-23 21:30:10,397 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2023-11-23 21:30:10,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:30:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2023-11-23 21:30:10,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2023-11-23 21:30:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:30:10,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:30:10,398 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2023-11-23 21:30:10,399 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2023-11-23 21:30:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:30:10,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:30:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_w83781d_data [2023-11-23 21:30:10,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_w83781d_data [2023-11-23 21:30:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max [2023-11-23 21:30:10,400 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max [2023-11-23 21:30:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_write_value [2023-11-23 21:30:10,400 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_write_value [2023-11-23 21:30:10,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:30:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2023-11-23 21:30:10,401 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2023-11-23 21:30:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:10,401 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_min [2023-11-23 21:30:10,402 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_min [2023-11-23 21:30:10,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:30:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2023-11-23 21:30:10,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2023-11-23 21:30:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2023-11-23 21:30:10,403 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2023-11-23 21:30:10,403 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max_hyst [2023-11-23 21:30:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max_hyst [2023-11-23 21:30:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-23 21:30:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-23 21:30:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 21:30:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 21:30:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:30:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-11-23 21:30:10,405 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-11-23 21:30:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:10,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:30:10,406 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:30:11,416 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:11,420 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:21,199 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:25,022 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:25,023 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:30:25,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:25 BoogieIcfgContainer [2023-11-23 21:30:25,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:25,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:25,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:25,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:25,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:06" (1/3) ... [2023-11-23 21:30:25,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b11ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:25, skipping insertion in model container [2023-11-23 21:30:25,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:09" (2/3) ... [2023-11-23 21:30:25,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b11ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:25, skipping insertion in model container [2023-11-23 21:30:25,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:25" (3/3) ... [2023-11-23 21:30:25,043 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2023-11-23 21:30:25,065 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:25,066 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:25,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:25,172 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;@43488f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:25,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:25,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 1630 states, 1128 states have (on average 1.548758865248227) internal successors, (1747), 1139 states have internal predecessors, (1747), 440 states have call successors, (440), 60 states have call predecessors, (440), 60 states have return successors, (440), 440 states have call predecessors, (440), 440 states have call successors, (440) [2023-11-23 21:30:25,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:30:25,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:25,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:25,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:25,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:25,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1177403958, now seen corresponding path program 1 times [2023-11-23 21:30:25,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:25,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308639619] [2023-11-23 21:30:25,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:25,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:26,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:26,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308639619] [2023-11-23 21:30:26,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308639619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:26,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:26,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:26,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170256066] [2023-11-23 21:30:26,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:26,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:26,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:26,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:26,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:26,870 INFO L87 Difference]: Start difference. First operand has 1630 states, 1128 states have (on average 1.548758865248227) internal successors, (1747), 1139 states have internal predecessors, (1747), 440 states have call successors, (440), 60 states have call predecessors, (440), 60 states have return successors, (440), 440 states have call predecessors, (440), 440 states have call successors, (440) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:28,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:28,556 INFO L93 Difference]: Finished difference Result 4877 states and 8405 transitions. [2023-11-23 21:30:28,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:28,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2023-11-23 21:30:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:28,602 INFO L225 Difference]: With dead ends: 4877 [2023-11-23 21:30:28,602 INFO L226 Difference]: Without dead ends: 3244 [2023-11-23 21:30:28,644 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 21:30:28,648 INFO L413 NwaCegarLoop]: 2539 mSDtfsCounter, 2594 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:28,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 4914 Invalid, 487 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 21:30:28,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2023-11-23 21:30:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 3218. [2023-11-23 21:30:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 2233 states have (on average 1.5472458575906851) internal successors, (3455), 2242 states have internal predecessors, (3455), 867 states have call successors, (867), 118 states have call predecessors, (867), 117 states have return successors, (858), 858 states have call predecessors, (858), 858 states have call successors, (858) [2023-11-23 21:30:29,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 5180 transitions. [2023-11-23 21:30:29,020 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 5180 transitions. Word has length 28 [2023-11-23 21:30:29,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:29,021 INFO L495 AbstractCegarLoop]: Abstraction has 3218 states and 5180 transitions. [2023-11-23 21:30:29,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:29,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 5180 transitions. [2023-11-23 21:30:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 21:30:29,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:29,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:29,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:30:29,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:29,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:29,035 INFO L85 PathProgramCache]: Analyzing trace with hash 413762912, now seen corresponding path program 1 times [2023-11-23 21:30:29,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:29,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005827996] [2023-11-23 21:30:29,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:29,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:29,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:29,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005827996] [2023-11-23 21:30:29,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005827996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:29,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:29,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:29,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205299363] [2023-11-23 21:30:29,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:29,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:29,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:29,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:29,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:29,859 INFO L87 Difference]: Start difference. First operand 3218 states and 5180 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:31,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:31,434 INFO L93 Difference]: Finished difference Result 9635 states and 15508 transitions. [2023-11-23 21:30:31,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:31,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2023-11-23 21:30:31,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:31,503 INFO L225 Difference]: With dead ends: 9635 [2023-11-23 21:30:31,503 INFO L226 Difference]: Without dead ends: 6418 [2023-11-23 21:30:31,534 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 21:30:31,536 INFO L413 NwaCegarLoop]: 2552 mSDtfsCounter, 2589 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2589 SdHoareTripleChecker+Valid, 4926 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:31,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2589 Valid, 4926 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 21:30:31,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2023-11-23 21:30:31,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 6392. [2023-11-23 21:30:31,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6392 states, 4439 states have (on average 1.546744762333859) internal successors, (6866), 4448 states have internal predecessors, (6866), 1719 states have call successors, (1719), 234 states have call predecessors, (1719), 233 states have return successors, (1710), 1710 states have call predecessors, (1710), 1710 states have call successors, (1710) [2023-11-23 21:30:31,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6392 states to 6392 states and 10295 transitions. [2023-11-23 21:30:31,941 INFO L78 Accepts]: Start accepts. Automaton has 6392 states and 10295 transitions. Word has length 31 [2023-11-23 21:30:31,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:31,941 INFO L495 AbstractCegarLoop]: Abstraction has 6392 states and 10295 transitions. [2023-11-23 21:30:31,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 6392 states and 10295 transitions. [2023-11-23 21:30:31,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:30:31,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:31,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:31,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:30:31,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:31,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1566404687, now seen corresponding path program 1 times [2023-11-23 21:30:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:31,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816482763] [2023-11-23 21:30:31,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:31,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:32,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:32,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816482763] [2023-11-23 21:30:32,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816482763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:32,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:32,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:32,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321325897] [2023-11-23 21:30:32,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:32,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:32,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:32,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:32,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:32,680 INFO L87 Difference]: Start difference. First operand 6392 states and 10295 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:34,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:34,397 INFO L93 Difference]: Finished difference Result 19157 states and 30853 transitions. [2023-11-23 21:30:34,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:34,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-11-23 21:30:34,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:34,530 INFO L225 Difference]: With dead ends: 19157 [2023-11-23 21:30:34,532 INFO L226 Difference]: Without dead ends: 12766 [2023-11-23 21:30:34,597 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 21:30:34,600 INFO L413 NwaCegarLoop]: 2566 mSDtfsCounter, 2597 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 4943 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:34,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 4943 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 21:30:34,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12766 states. [2023-11-23 21:30:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12766 to 12740. [2023-11-23 21:30:35,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12740 states, 8851 states have (on average 1.5462659586487402) internal successors, (13686), 8860 states have internal predecessors, (13686), 3423 states have call successors, (3423), 466 states have call predecessors, (3423), 465 states have return successors, (3414), 3414 states have call predecessors, (3414), 3414 states have call successors, (3414) [2023-11-23 21:30:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12740 states to 12740 states and 20523 transitions. [2023-11-23 21:30:35,420 INFO L78 Accepts]: Start accepts. Automaton has 12740 states and 20523 transitions. Word has length 29 [2023-11-23 21:30:35,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:35,421 INFO L495 AbstractCegarLoop]: Abstraction has 12740 states and 20523 transitions. [2023-11-23 21:30:35,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12740 states and 20523 transitions. [2023-11-23 21:30:35,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 21:30:35,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:35,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:35,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:30:35,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:35,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:35,432 INFO L85 PathProgramCache]: Analyzing trace with hash -642953447, now seen corresponding path program 1 times [2023-11-23 21:30:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641563908] [2023-11-23 21:30:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:35,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:36,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641563908] [2023-11-23 21:30:36,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641563908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:36,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:36,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:36,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170165936] [2023-11-23 21:30:36,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:36,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:36,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:36,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:36,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:36,158 INFO L87 Difference]: Start difference. First operand 12740 states and 20523 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:38,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:38,194 INFO L93 Difference]: Finished difference Result 38185 states and 61509 transitions. [2023-11-23 21:30:38,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:38,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-11-23 21:30:38,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:38,545 INFO L225 Difference]: With dead ends: 38185 [2023-11-23 21:30:38,545 INFO L226 Difference]: Without dead ends: 25446 [2023-11-23 21:30:38,625 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 21:30:38,633 INFO L413 NwaCegarLoop]: 2517 mSDtfsCounter, 2601 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:38,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2601 Valid, 4894 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 21:30:38,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25446 states. [2023-11-23 21:30:40,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25446 to 25420. [2023-11-23 21:30:40,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25420 states, 17663 states have (on average 1.5457170356111647) internal successors, (27302), 17672 states have internal predecessors, (27302), 6827 states have call successors, (6827), 930 states have call predecessors, (6827), 929 states have return successors, (6818), 6818 states have call predecessors, (6818), 6818 states have call successors, (6818) [2023-11-23 21:30:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25420 states to 25420 states and 40947 transitions. [2023-11-23 21:30:40,787 INFO L78 Accepts]: Start accepts. Automaton has 25420 states and 40947 transitions. Word has length 25 [2023-11-23 21:30:40,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:40,788 INFO L495 AbstractCegarLoop]: Abstraction has 25420 states and 40947 transitions. [2023-11-23 21:30:40,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:40,788 INFO L276 IsEmpty]: Start isEmpty. Operand 25420 states and 40947 transitions. [2023-11-23 21:30:40,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:30:40,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:40,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:40,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:30:40,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:40,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:40,791 INFO L85 PathProgramCache]: Analyzing trace with hash 323801944, now seen corresponding path program 1 times [2023-11-23 21:30:40,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:40,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484778380] [2023-11-23 21:30:40,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:40,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:41,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:41,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:41,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484778380] [2023-11-23 21:30:41,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484778380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:41,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:41,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:41,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571731200] [2023-11-23 21:30:41,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:41,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:41,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:41,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:41,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:41,453 INFO L87 Difference]: Start difference. First operand 25420 states and 40947 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:30:44,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:44,859 INFO L93 Difference]: Finished difference Result 76129 states and 122613 transitions. [2023-11-23 21:30:44,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:44,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-11-23 21:30:44,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:45,469 INFO L225 Difference]: With dead ends: 76129 [2023-11-23 21:30:45,469 INFO L226 Difference]: Without dead ends: 50710 [2023-11-23 21:30:45,624 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 21:30:45,627 INFO L413 NwaCegarLoop]: 2818 mSDtfsCounter, 2591 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 5192 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:45,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2591 Valid, 5192 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 21:30:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50710 states.