./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/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_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E --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 0.3.0-dev-826ab2b [2024-11-14 05:47:35,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:47:35,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:47:35,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:47:35,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:47:35,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:47:35,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:47:35,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:47:35,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:47:35,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:47:35,493 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:47:35,493 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:47:35,493 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:47:35,493 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:47:35,493 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:47:35,493 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:47:35,494 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:47:35,494 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:47:35,494 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:47:35,494 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:47:35,494 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:47:35,494 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:47:35,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:47:35,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:47:35,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:47:35,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:47:35,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:47:35,496 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:47:35,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:47:35,496 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:47:35,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:47:35,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:47:35,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:47:35,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:47:35,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:47:35,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:47:35,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:47:35,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:47:35,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:47:35,497 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:47:35,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:47:35,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:47:35,497 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:47:35,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:47:35,497 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E 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 [2024-11-14 05:47:35,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:47:35,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:47:35,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:47:35,876 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:47:35,877 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:47:35,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i Unable to find full path for "g++" [2024-11-14 05:47:37,909 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:47:38,518 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:47:38,520 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2024-11-14 05:47:38,570 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/data/0ff6177a9/b73b6f0e672046b58a390a76d3a4636b/FLAG99559db84 [2024-11-14 05:47:38,596 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/data/0ff6177a9/b73b6f0e672046b58a390a76d3a4636b [2024-11-14 05:47:38,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:47:38,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:47:38,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:47:38,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:47:38,611 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:47:38,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:47:38" (1/1) ... [2024-11-14 05:47:38,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a2c5006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:38, skipping insertion in model container [2024-11-14 05:47:38,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:47:38" (1/1) ... [2024-11-14 05:47:38,745 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:47:40,334 WARN L250 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_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2024-11-14 05:47:40,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:47:40,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:47:41,041 WARN L250 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_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i[231089,231102] [2024-11-14 05:47:41,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:47:41,547 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:47:41,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41 WrapperNode [2024-11-14 05:47:41,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:47:41,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:47:41,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:47:41,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:47:41,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:41,672 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,111 INFO L138 Inliner]: procedures = 208, calls = 3062, calls flagged for inlining = 90, calls inlined = 82, statements flattened = 9130 [2024-11-14 05:47:42,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:47:42,113 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:47:42,113 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:47:42,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:47:42,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:47:42,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:47:42,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:47:42,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:47:42,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (1/1) ... [2024-11-14 05:47:42,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:47:42,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:47:42,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:47:42,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b7d8eb3-cc63-4fed-9381-f425ecf6262d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:47:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_read_value [2024-11-14 05:47:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_read_value [2024-11-14 05:47:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2024-11-14 05:47:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2024-11-14 05:47:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:47:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_detect [2024-11-14 05:47:42,790 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_detect [2024-11-14 05:47:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2024-11-14 05:47:42,790 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2024-11-14 05:47:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure store_beep [2024-11-14 05:47:42,790 INFO L138 BoogieDeclarations]: Found implementation of procedure store_beep [2024-11-14 05:47:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 05:47:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 05:47:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure store_pwm [2024-11-14 05:47:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure store_pwm [2024-11-14 05:47:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_min [2024-11-14 05:47:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_min [2024-11-14 05:47:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_div [2024-11-14 05:47:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_div [2024-11-14 05:47:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_FROM_REG [2024-11-14 05:47:42,792 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_FROM_REG [2024-11-14 05:47:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 05:47:42,792 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 05:47:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-14 05:47:42,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-14 05:47:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-11-14 05:47:42,793 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-11-14 05:47:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure show_sensor [2024-11-14 05:47:42,793 INFO L138 BoogieDeclarations]: Found implementation of procedure show_sensor [2024-11-14 05:47:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-14 05:47:42,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-14 05:47:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2024-11-14 05:47:42,793 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2024-11-14 05:47:42,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:47:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max_hyst [2024-11-14 05:47:42,794 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max_hyst [2024-11-14 05:47:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2024-11-14 05:47:42,794 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2024-11-14 05:47:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2024-11-14 05:47:42,794 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2024-11-14 05:47:42,794 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2024-11-14 05:47:42,795 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2024-11-14 05:47:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_isa_unregister [2024-11-14 05:47:42,795 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_isa_unregister [2024-11-14 05:47:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2024-11-14 05:47:42,795 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2024-11-14 05:47:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:47:42,795 INFO L130 BoogieDeclarations]: Found specification of procedure show_beep [2024-11-14 05:47:42,796 INFO L138 BoogieDeclarations]: Found implementation of procedure show_beep [2024-11-14 05:47:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2024-11-14 05:47:42,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2024-11-14 05:47:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:47:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:47:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2024-11-14 05:47:42,796 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2024-11-14 05:47:42,796 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-14 05:47:42,797 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-14 05:47:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-14 05:47:42,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-14 05:47:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure show_pwm [2024-11-14 05:47:42,797 INFO L138 BoogieDeclarations]: Found implementation of procedure show_pwm [2024-11-14 05:47:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2024-11-14 05:47:42,797 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2024-11-14 05:47:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-11-14 05:47:42,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-11-14 05:47:42,797 INFO L130 BoogieDeclarations]: Found specification of procedure store_sensor [2024-11-14 05:47:42,797 INFO L138 BoogieDeclarations]: Found implementation of procedure store_sensor [2024-11-14 05:47:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_update_device [2024-11-14 05:47:42,798 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_update_device [2024-11-14 05:47:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_remove_files [2024-11-14 05:47:42,798 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_remove_files [2024-11-14 05:47:42,798 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2024-11-14 05:47:42,799 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2024-11-14 05:47:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-14 05:47:42,799 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-14 05:47:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure store_in_max [2024-11-14 05:47:42,799 INFO L138 BoogieDeclarations]: Found implementation of procedure store_in_max [2024-11-14 05:47:42,799 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2024-11-14 05:47:42,799 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2024-11-14 05:47:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:47:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2024-11-14 05:47:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2024-11-14 05:47:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_w83781d_data [2024-11-14 05:47:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_w83781d_data [2024-11-14 05:47:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:47:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2024-11-14 05:47:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2024-11-14 05:47:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2024-11-14 05:47:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2024-11-14 05:47:42,800 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2024-11-14 05:47:42,800 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2024-11-14 05:47:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2024-11-14 05:47:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2024-11-14 05:47:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2024-11-14 05:47:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2024-11-14 05:47:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:47:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2024-11-14 05:47:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_w83781d_data [2024-11-14 05:47:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-14 05:47:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-14 05:47:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2024-11-14 05:47:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2024-11-14 05:47:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 05:47:42,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 05:47:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_w83781d_data [2024-11-14 05:47:42,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_w83781d_data [2024-11-14 05:47:42,803 INFO L130 BoogieDeclarations]: Found specification of procedure store_temp_max [2024-11-14 05:47:42,803 INFO L138 BoogieDeclarations]: Found implementation of procedure store_temp_max [2024-11-14 05:47:42,803 INFO L130 BoogieDeclarations]: Found specification of procedure w83781d_write_value [2024-11-14 05:47:42,803 INFO L138 BoogieDeclarations]: Found implementation of procedure w83781d_write_value [2024-11-14 05:47:42,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:47:42,804 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2024-11-14 05:47:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2024-11-14 05:47:42,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:47:42,804 INFO L130 BoogieDeclarations]: Found specification of procedure store_fan_min [2024-11-14 05:47:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure store_fan_min [2024-11-14 05:47:42,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:47:42,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2024-11-14 05:47:42,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_w83781d_data [2024-11-14 05:47:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2024-11-14 05:47:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2024-11-14 05:47:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max_hyst [2024-11-14 05:47:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max_hyst [2024-11-14 05:47:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2024-11-14 05:47:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2024-11-14 05:47:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-14 05:47:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-14 05:47:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:47:42,805 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2024-11-14 05:47:42,805 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2024-11-14 05:47:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:47:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:47:42,806 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-14 05:47:42,806 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-14 05:47:44,486 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:47:44,490 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:48:21,374 INFO L? ?]: Removed 1998 outVars from TransFormulas that were not future-live. [2024-11-14 05:48:21,374 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:48:29,301 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:48:29,305 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-14 05:48:29,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:48:29 BoogieIcfgContainer [2024-11-14 05:48:29,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:48:29,310 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:48:29,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:48:29,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:48:29,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:47:38" (1/3) ... [2024-11-14 05:48:29,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c7eaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:48:29, skipping insertion in model container [2024-11-14 05:48:29,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:47:41" (2/3) ... [2024-11-14 05:48:29,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c7eaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:48:29, skipping insertion in model container [2024-11-14 05:48:29,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:48:29" (3/3) ... [2024-11-14 05:48:29,322 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i [2024-11-14 05:48:29,342 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:48:29,347 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--w83781d.ko-main.cil.out.i that has 61 procedures, 1653 locations, 1 initial locations, 23 loop locations, and 1 error locations. [2024-11-14 05:48:29,491 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:48:29,507 INFO L333 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, 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;@458c6fee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:48:29,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:48:29,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 1653 states, 1151 states have (on average 1.5577758470894874) internal successors, (1793), 1163 states have internal predecessors, (1793), 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) [2024-11-14 05:48:29,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-14 05:48:29,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:48:29,542 INFO L215 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] [2024-11-14 05:48:29,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:48:29,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:48:29,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1958700981, now seen corresponding path program 1 times [2024-11-14 05:48:29,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:48:29,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599756239] [2024-11-14 05:48:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:48:29,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:51:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:02,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:52:02,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:52:02,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599756239] [2024-11-14 05:52:02,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599756239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:52:02,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:52:02,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:52:02,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380893596] [2024-11-14 05:52:02,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:52:02,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:52:02,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:52:02,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:52:02,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:52:02,097 INFO L87 Difference]: Start difference. First operand has 1653 states, 1151 states have (on average 1.5577758470894874) internal successors, (1793), 1163 states have internal predecessors, (1793), 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 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) [2024-11-14 05:52:04,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:52:06,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:06,259 INFO L93 Difference]: Finished difference Result 4950 states and 8551 transitions. [2024-11-14 05:52:06,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:52:06,262 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 [2024-11-14 05:52:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:06,302 INFO L225 Difference]: With dead ends: 4950 [2024-11-14 05:52:06,302 INFO L226 Difference]: Without dead ends: 3294 [2024-11-14 05:52:06,331 INFO L431 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 [2024-11-14 05:52:06,334 INFO L432 NwaCegarLoop]: 2420 mSDtfsCounter, 2645 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2645 SdHoareTripleChecker+Valid, 4836 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:06,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2645 Valid, 4836 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2024-11-14 05:52:06,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2024-11-14 05:52:06,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3268. [2024-11-14 05:52:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 2282 states have (on average 1.5565293602103418) internal successors, (3552), 2293 states have internal predecessors, (3552), 868 states have call successors, (868), 118 states have call predecessors, (868), 117 states have return successors, (859), 859 states have call predecessors, (859), 859 states have call successors, (859) [2024-11-14 05:52:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 5279 transitions. [2024-11-14 05:52:06,688 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 5279 transitions. Word has length 29 [2024-11-14 05:52:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:06,689 INFO L471 AbstractCegarLoop]: Abstraction has 3268 states and 5279 transitions. [2024-11-14 05:52:06,689 INFO L472 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) [2024-11-14 05:52:06,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 5279 transitions. [2024-11-14 05:52:06,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 05:52:06,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:06,695 INFO L215 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] [2024-11-14 05:52:06,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:52:06,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:52:06,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:06,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1088776378, now seen corresponding path program 1 times [2024-11-14 05:52:06,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:52:06,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968010131] [2024-11-14 05:52:06,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:06,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:55:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:55:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:55:11,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:55:11,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968010131] [2024-11-14 05:55:11,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968010131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:55:11,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:55:11,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:55:11,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778142169] [2024-11-14 05:55:11,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:55:11,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:55:11,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:55:11,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:55:11,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:55:11,080 INFO L87 Difference]: Start difference. First operand 3268 states and 5279 transitions. 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) [2024-11-14 05:55:13,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:55:14,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:55:14,982 INFO L93 Difference]: Finished difference Result 9785 states and 15805 transitions. [2024-11-14 05:55:14,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:55:14,983 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 [2024-11-14 05:55:14,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:55:15,029 INFO L225 Difference]: With dead ends: 9785 [2024-11-14 05:55:15,030 INFO L226 Difference]: Without dead ends: 6518 [2024-11-14 05:55:15,054 INFO L431 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 [2024-11-14 05:55:15,055 INFO L432 NwaCegarLoop]: 2552 mSDtfsCounter, 2638 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:55:15,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 4964 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2024-11-14 05:55:15,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6518 states. [2024-11-14 05:55:15,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6518 to 6492. [2024-11-14 05:55:15,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6492 states, 4537 states have (on average 1.556094335463963) internal successors, (7060), 4550 states have internal predecessors, (7060), 1721 states have call successors, (1721), 234 states have call predecessors, (1721), 233 states have return successors, (1712), 1712 states have call predecessors, (1712), 1712 states have call successors, (1712) [2024-11-14 05:55:15,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6492 states to 6492 states and 10493 transitions. [2024-11-14 05:55:15,452 INFO L78 Accepts]: Start accepts. Automaton has 6492 states and 10493 transitions. Word has length 28 [2024-11-14 05:55:15,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:55:15,453 INFO L471 AbstractCegarLoop]: Abstraction has 6492 states and 10493 transitions. [2024-11-14 05:55:15,453 INFO L472 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) [2024-11-14 05:55:15,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6492 states and 10493 transitions. [2024-11-14 05:55:15,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 05:55:15,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:55:15,458 INFO L215 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] [2024-11-14 05:55:15,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:55:15,459 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:55:15,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:55:15,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1351255104, now seen corresponding path program 1 times [2024-11-14 05:55:15,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:55:15,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329449464] [2024-11-14 05:55:15,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:55:15,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:58:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:58:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:58:22,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:58:22,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329449464] [2024-11-14 05:58:22,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329449464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:58:22,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:58:22,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:58:22,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637559086] [2024-11-14 05:58:22,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:58:22,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:58:22,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:58:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:58:22,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:58:22,052 INFO L87 Difference]: Start difference. First operand 6492 states and 10493 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) [2024-11-14 05:58:24,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:58:26,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:58:26,029 INFO L93 Difference]: Finished difference Result 19441 states and 31419 transitions. [2024-11-14 05:58:26,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:58:26,030 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 [2024-11-14 05:58:26,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:58:26,153 INFO L225 Difference]: With dead ends: 19441 [2024-11-14 05:58:26,153 INFO L226 Difference]: Without dead ends: 12950 [2024-11-14 05:58:26,210 INFO L431 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 [2024-11-14 05:58:26,213 INFO L432 NwaCegarLoop]: 2566 mSDtfsCounter, 2635 mSDsluCounter, 2412 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 4978 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:58:26,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2635 Valid, 4978 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 05:58:26,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12950 states. [2024-11-14 05:58:27,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12950 to 12924. [2024-11-14 05:58:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12924 states, 9035 states have (on average 1.5555063641394578) internal successors, (14054), 9052 states have internal predecessors, (14054), 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) [2024-11-14 05:58:27,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12924 states to 12924 states and 20891 transitions. [2024-11-14 05:58:27,146 INFO L78 Accepts]: Start accepts. Automaton has 12924 states and 20891 transitions. Word has length 31 [2024-11-14 05:58:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:58:27,146 INFO L471 AbstractCegarLoop]: Abstraction has 12924 states and 20891 transitions. [2024-11-14 05:58:27,146 INFO L472 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) [2024-11-14 05:58:27,146 INFO L276 IsEmpty]: Start isEmpty. Operand 12924 states and 20891 transitions. [2024-11-14 05:58:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 05:58:27,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:58:27,148 INFO L215 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] [2024-11-14 05:58:27,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:58:27,148 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:58:27,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:58:27,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2061331292, now seen corresponding path program 1 times [2024-11-14 05:58:27,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:58:27,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53269631] [2024-11-14 05:58:27,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:58:27,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 06:01:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 06:01:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 06:01:37,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 06:01:37,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53269631] [2024-11-14 06:01:37,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53269631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 06:01:37,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 06:01:37,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 06:01:37,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449019187] [2024-11-14 06:01:37,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 06:01:37,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 06:01:37,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 06:01:37,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 06:01:37,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 06:01:37,008 INFO L87 Difference]: Start difference. First operand 12924 states and 20891 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) [2024-11-14 06:01:39,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 06:01:41,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 06:01:41,352 INFO L93 Difference]: Finished difference Result 38737 states and 62613 transitions. [2024-11-14 06:01:41,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 06:01:41,353 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 [2024-11-14 06:01:41,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 06:01:41,552 INFO L225 Difference]: With dead ends: 38737 [2024-11-14 06:01:41,552 INFO L226 Difference]: Without dead ends: 25814 [2024-11-14 06:01:41,634 INFO L431 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 [2024-11-14 06:01:41,636 INFO L432 NwaCegarLoop]: 2580 mSDtfsCounter, 2641 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 4995 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-14 06:01:41,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2641 Valid, 4995 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2024-11-14 06:01:41,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25814 states. [2024-11-14 06:01:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25814 to 25788. [2024-11-14 06:01:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25788 states, 18031 states have (on average 1.5549886306915868) internal successors, (28038), 18056 states have internal predecessors, (28038), 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) [2024-11-14 06:01:42,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25788 states to 25788 states and 41683 transitions. [2024-11-14 06:01:43,032 INFO L78 Accepts]: Start accepts. Automaton has 25788 states and 41683 transitions. Word has length 31 [2024-11-14 06:01:43,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 06:01:43,032 INFO L471 AbstractCegarLoop]: Abstraction has 25788 states and 41683 transitions. [2024-11-14 06:01:43,033 INFO L472 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) [2024-11-14 06:01:43,033 INFO L276 IsEmpty]: Start isEmpty. Operand 25788 states and 41683 transitions. [2024-11-14 06:01:43,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 06:01:43,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 06:01:43,034 INFO L215 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] [2024-11-14 06:01:43,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 06:01:43,035 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 06:01:43,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 06:01:43,035 INFO L85 PathProgramCache]: Analyzing trace with hash -96828287, now seen corresponding path program 1 times [2024-11-14 06:01:43,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 06:01:43,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834618012] [2024-11-14 06:01:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 06:01:43,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms