./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 1ecdcd8edc073d3f84552ba11829c64f005a40ec1d9c17a2301c9d20c3971656 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:46:51,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:46:51,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:46:51,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:46:51,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:46:51,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:46:51,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:46:51,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:46:51,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:46:51,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:46:51,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:46:51,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:46:51,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:46:51,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:46:51,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:46:51,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:46:51,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:46:51,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:46:51,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:46:51,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:46:51,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:46:51,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:46:51,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:46:51,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:46:52,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:46:52,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:46:52,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:46:52,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:46:52,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:46:52,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:46:52,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:46:52,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:46:52,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:46:52,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:46:52,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:46:52,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:46:52,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:46:52,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:46:52,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:46:52,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:46:52,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:46:52,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:46:52,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:46:52,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:46:52,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:46:52,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:46:52,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:46:52,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:46:52,061 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:46:52,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:46:52,061 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:46:52,062 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:46:52,063 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:46:52,063 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:46:52,063 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:46:52,064 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:46:52,064 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:46:52,064 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:46:52,065 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:46:52,065 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:46:52,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:46:52,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:46:52,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:46:52,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:46:52,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:46:52,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:46:52,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:46:52,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:46:52,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:46:52,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:46:52,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:46:52,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:46:52,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:46:52,070 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:46:52,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:46:52,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:46:52,070 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:46:52,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:46:52,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:46:52,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:46:52,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ecdcd8edc073d3f84552ba11829c64f005a40ec1d9c17a2301c9d20c3971656 [2022-11-03 03:46:52,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:46:52,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:46:52,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:46:52,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:46:52,448 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:46:52,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i [2022-11-03 03:46:52,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/data/98b43cdab/34dd0cb21cb84fc881fdcc22f35d340d/FLAGe2872dcc1 [2022-11-03 03:46:53,491 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:46:53,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i [2022-11-03 03:46:53,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/data/98b43cdab/34dd0cb21cb84fc881fdcc22f35d340d/FLAGe2872dcc1 [2022-11-03 03:46:54,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/data/98b43cdab/34dd0cb21cb84fc881fdcc22f35d340d [2022-11-03 03:46:54,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:46:54,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:46:54,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:46:54,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:46:54,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:46:54,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:54" (1/1) ... [2022-11-03 03:46:54,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e11b24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:54, skipping insertion in model container [2022-11-03 03:46:54,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:54" (1/1) ... [2022-11-03 03:46:54,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:46:54,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:46:54,691 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name init_data at C: (*init_data)(struct si_sm_data___0 * , struct si_sm_io * ) [3397] [2022-11-03 03:46:54,691 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name start_transaction at C: (*start_transaction)(struct si_sm_data___0 * , unsigned char * , unsigned int ) [3398] [2022-11-03 03:46:54,691 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name get_result at C: (*get_result)(struct si_sm_data___0 * , unsigned char * , unsigned int ) [3399] [2022-11-03 03:46:54,692 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___0 * , long ) [3400] [2022-11-03 03:46:54,692 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___0 * ) [3401] [2022-11-03 03:46:54,692 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___0 * ) [3402] [2022-11-03 03:46:54,694 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name init_data at C: (*init_data)(struct si_sm_data___1 * , struct si_sm_io * ) [3433] [2022-11-03 03:46:54,694 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name start_transaction at C: (*start_transaction)(struct si_sm_data___1 * , unsigned char * , unsigned int ) [3434] [2022-11-03 03:46:54,694 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name get_result at C: (*get_result)(struct si_sm_data___1 * , unsigned char * , unsigned int ) [3435] [2022-11-03 03:46:54,695 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___1 * , long ) [3436] [2022-11-03 03:46:54,695 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___1 * ) [3437] [2022-11-03 03:46:54,695 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___1 * ) [3438] [2022-11-03 03:46:55,014 WARN L230 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_bb144695-2e26-49a4-b8ca-77aa5e16ec38/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i[105316,105329] [2022-11-03 03:46:56,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:46:56,567 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:46:56,670 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name init_data at C: (*init_data)(struct si_sm_data___0 * , struct si_sm_io * ) [3397] [2022-11-03 03:46:56,670 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name start_transaction at C: (*start_transaction)(struct si_sm_data___0 * , unsigned char * , unsigned int ) [3398] [2022-11-03 03:46:56,671 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name get_result at C: (*get_result)(struct si_sm_data___0 * , unsigned char * , unsigned int ) [3399] [2022-11-03 03:46:56,671 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___0 * , long ) [3400] [2022-11-03 03:46:56,672 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___0 * ) [3401] [2022-11-03 03:46:56,672 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___0 * ) [3402] [2022-11-03 03:46:56,672 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name init_data at C: (*init_data)(struct si_sm_data___1 * , struct si_sm_io * ) [3433] [2022-11-03 03:46:56,673 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name start_transaction at C: (*start_transaction)(struct si_sm_data___1 * , unsigned char * , unsigned int ) [3434] [2022-11-03 03:46:56,674 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name get_result at C: (*get_result)(struct si_sm_data___1 * , unsigned char * , unsigned int ) [3435] [2022-11-03 03:46:56,674 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name event at C: (*event)(struct si_sm_data___1 * , long ) [3436] [2022-11-03 03:46:56,674 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name detect at C: (*detect)(struct si_sm_data___1 * ) [3437] [2022-11-03 03:46:56,675 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name cleanup at C: (*cleanup)(struct si_sm_data___1 * ) [3438] [2022-11-03 03:46:56,685 WARN L230 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_bb144695-2e26-49a4-b8ca-77aa5e16ec38/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i[105316,105329] [2022-11-03 03:46:57,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:46:57,184 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:46:57,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57 WrapperNode [2022-11-03 03:46:57,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:46:57,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:46:57,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:46:57,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:46:57,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:57,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:57,589 INFO L138 Inliner]: procedures = 348, calls = 3212, calls flagged for inlining = 148, calls inlined = 148, statements flattened = 6697 [2022-11-03 03:46:57,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:46:57,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:46:57,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:46:57,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:46:57,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:57,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:57,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:57,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:57,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:58,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:58,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:58,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:58,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:46:58,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:46:58,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:46:58,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:46:58,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (1/1) ... [2022-11-03 03:46:58,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:46:58,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:58,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:46:58,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb144695-2e26-49a4-b8ca-77aa5e16ec38/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:46:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure smic_size [2022-11-03 03:46:58,211 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_size [2022-11-03 03:46:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 03:46:58,212 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 03:46:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure write_data [2022-11-03 03:46:58,212 INFO L138 BoogieDeclarations]: Found implementation of procedure write_data [2022-11-03 03:46:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure bt_event [2022-11-03 03:46:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_event [2022-11-03 03:46:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-03 03:46:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-03 03:46:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:46:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2022-11-03 03:46:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2022-11-03 03:46:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:46:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-03 03:46:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-03 03:46:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure enable_si_irq [2022-11-03 03:46:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_si_irq [2022-11-03 03:46:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:46:58,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:46:58,215 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_msg_done [2022-11-03 03:46:58,216 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_msg_done [2022-11-03 03:46:58,216 INFO L130 BoogieDeclarations]: Found specification of procedure start_enable_irq [2022-11-03 03:46:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure start_enable_irq [2022-11-03 03:46:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-03 03:46:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-03 03:46:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_30 [2022-11-03 03:46:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_30 [2022-11-03 03:46:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:46:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:46:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure reset_flags [2022-11-03 03:46:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_flags [2022-11-03 03:46:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure smic_cleanup [2022-11-03 03:46:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_cleanup [2022-11-03 03:46:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure clear_obf [2022-11-03 03:46:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_obf [2022-11-03 03:46:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure smi_event_handler [2022-11-03 03:46:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_event_handler [2022-11-03 03:46:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte___0 [2022-11-03 03:46:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte___0 [2022-11-03 03:46:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure read_status [2022-11-03 03:46:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status [2022-11-03 03:46:58,221 INFO L130 BoogieDeclarations]: Found specification of procedure bt_size [2022-11-03 03:46:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_size [2022-11-03 03:46:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure bt_init_data [2022-11-03 03:46:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_init_data [2022-11-03 03:46:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_resume [2022-11-03 03:46:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_resume [2022-11-03 03:46:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure smic_detect [2022-11-03 03:46:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_detect [2022-11-03 03:46:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 03:46:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 03:46:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 03:46:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 03:46:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure request_events [2022-11-03 03:46:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure request_events [2022-11-03 03:46:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2022-11-03 03:46:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2022-11-03 03:46:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 03:46:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 03:46:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:46:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:46:58,226 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-03 03:46:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-03 03:46:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure check_hotmod_int_op [2022-11-03 03:46:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hotmod_int_op [2022-11-03 03:46:58,228 INFO L130 BoogieDeclarations]: Found specification of procedure parse_str [2022-11-03 03:46:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_str [2022-11-03 03:46:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 03:46:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 03:46:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_detect [2022-11-03 03:46:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_detect [2022-11-03 03:46:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_size [2022-11-03 03:46:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_size [2022-11-03 03:46:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure drain_BMC2HOST [2022-11-03 03:46:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_BMC2HOST [2022-11-03 03:46:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure error_recovery [2022-11-03 03:46:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure error_recovery [2022-11-03 03:46:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_status [2022-11-03 03:46:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_status [2022-11-03 03:46:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure disable_si_irq [2022-11-03 03:46:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_si_irq [2022-11-03 03:46:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure start_error_recovery [2022-11-03 03:46:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure start_error_recovery [2022-11-03 03:46:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_event [2022-11-03 03:46:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_event [2022-11-03 03:46:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure read_next_byte [2022-11-03 03:46:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure read_next_byte [2022-11-03 03:46:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure start_smic_transaction [2022-11-03 03:46:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure start_smic_transaction [2022-11-03 03:46:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-11-03 03:46:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-11-03 03:46:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:46:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 03:46:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 03:46:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure state2txt [2022-11-03 03:46:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure state2txt [2022-11-03 03:46:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:46:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_unregister_smi [2022-11-03 03:46:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_unregister_smi [2022-11-03 03:46:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-03 03:46:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-03 03:46:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_38 [2022-11-03 03:46:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_38 [2022-11-03 03:46:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:46:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:46:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-11-03 03:46:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-11-03 03:46:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:46:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:46:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-11-03 03:46:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-11-03 03:46:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-03 03:46:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-03 03:46:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:46:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:46:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure getnstimeofday [2022-11-03 03:46:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure getnstimeofday [2022-11-03 03:46:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure start_next_msg [2022-11-03 03:46:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure start_next_msg [2022-11-03 03:46:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure init_smic_data [2022-11-03 03:46:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure init_smic_data [2022-11-03 03:46:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-03 03:46:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 03:46:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 03:46:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure kcs_cleanup [2022-11-03 03:46:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kcs_cleanup [2022-11-03 03:46:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 03:46:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 03:46:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure start_error_recovery___0 [2022-11-03 03:46:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure start_error_recovery___0 [2022-11-03 03:46:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_integer [2022-11-03 03:46:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_integer [2022-11-03 03:46:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure write_cmd [2022-11-03 03:46:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure write_cmd [2022-11-03 03:46:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:46:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:46:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure bt_get_result [2022-11-03 03:46:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_get_result [2022-11-03 03:46:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_one_si [2022-11-03 03:46:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_one_si [2022-11-03 03:46:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure smic_get_result [2022-11-03 03:46:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_get_result [2022-11-03 03:46:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_remove [2022-11-03 03:46:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_remove [2022-11-03 03:46:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:46:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:46:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:46:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure check_obf [2022-11-03 03:46:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure check_obf [2022-11-03 03:46:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_add_proc_entry [2022-11-03 03:46:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_add_proc_entry [2022-11-03 03:46:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-03 03:46:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-03 03:46:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-03 03:46:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-03 03:46:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 03:46:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-03 03:46:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-11-03 03:46:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-11-03 03:46:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-03 03:46:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-03 03:46:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:46:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-11-03 03:46:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-11-03 03:46:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-03 03:46:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-03 03:46:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure get_kcs_result [2022-11-03 03:46:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure get_kcs_result [2022-11-03 03:46:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:46:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pci_probe [2022-11-03 03:46:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pci_probe [2022-11-03 03:46:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_timer_and_thread [2022-11-03 03:46:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_timer_and_thread [2022-11-03 03:46:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 03:46:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 03:46:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure bt_detect [2022-11-03 03:46:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_detect [2022-11-03 03:46:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure read_data [2022-11-03 03:46:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure read_data [2022-11-03 03:46:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:46:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:46:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-11-03 03:46:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-11-03 03:46:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-03 03:46:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-03 03:46:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2022-11-03 03:46:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2022-11-03 03:46:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure try_smi_init [2022-11-03 03:46:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure try_smi_init [2022-11-03 03:46:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure add_smi [2022-11-03 03:46:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure add_smi [2022-11-03 03:46:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure force_result [2022-11-03 03:46:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure force_result [2022-11-03 03:46:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 03:46:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 03:46:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:46:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:46:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_recv_msg [2022-11-03 03:46:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_recv_msg [2022-11-03 03:46:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure status2txt [2022-11-03 03:46:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure status2txt [2022-11-03 03:46:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_flags [2022-11-03 03:46:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_flags [2022-11-03 03:46:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 03:46:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 03:46:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:46:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure bt_start_transaction [2022-11-03 03:46:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_start_transaction [2022-11-03 03:46:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure start_kcs_transaction [2022-11-03 03:46:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure start_kcs_transaction [2022-11-03 03:46:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:46:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:46:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure read_smic_data [2022-11-03 03:46:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smic_data [2022-11-03 03:46:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure handle_flags [2022-11-03 03:46:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_flags [2022-11-03 03:46:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure start_clear_flags [2022-11-03 03:46:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure start_clear_flags [2022-11-03 03:46:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-11-03 03:46:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-11-03 03:46:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:46:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure bt_cleanup [2022-11-03 03:46:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_cleanup [2022-11-03 03:46:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_thread [2022-11-03 03:46:58,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_thread [2022-11-03 03:46:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-03 03:46:58,329 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-03 03:46:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:46:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 03:46:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 03:46:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure write_next_byte [2022-11-03 03:46:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure write_next_byte [2022-11-03 03:46:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure poll [2022-11-03 03:46:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure poll [2022-11-03 03:46:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:46:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:46:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_si_set_not_busy [2022-11-03 03:46:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_si_set_not_busy [2022-11-03 03:46:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:46:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 03:46:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-03 03:46:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-03 03:46:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:46:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:46:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-03 03:46:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-03 03:46:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure write_smic_flags [2022-11-03 03:46:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure write_smic_flags [2022-11-03 03:46:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:46:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:46:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2022-11-03 03:46:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2022-11-03 03:46:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure write_smic_control [2022-11-03 03:46:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure write_smic_control [2022-11-03 03:46:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 03:46:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 03:46:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure return_hosed_msg [2022-11-03 03:46:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure return_hosed_msg [2022-11-03 03:46:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_remove [2022-11-03 03:46:58,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_remove [2022-11-03 03:46:58,334 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_pnp_probe [2022-11-03 03:46:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_pnp_probe [2022-11-03 03:46:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure write_next_byte___0 [2022-11-03 03:46:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure write_next_byte___0 [2022-11-03 03:46:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure read_all_bytes [2022-11-03 03:46:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure read_all_bytes [2022-11-03 03:46:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure init_kcs_data [2022-11-03 03:46:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure init_kcs_data [2022-11-03 03:46:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure si_irq_handler [2022-11-03 03:46:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure si_irq_handler [2022-11-03 03:46:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:46:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:46:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure smic_event [2022-11-03 03:46:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure smic_event [2022-11-03 03:46:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:46:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-03 03:46:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-03 03:46:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-03 03:46:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-03 03:46:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-11-03 03:46:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-11-03 03:46:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure handle_transaction_done [2022-11-03 03:46:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_transaction_done [2022-11-03 03:46:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:46:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:46:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2022-11-03 03:46:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2022-11-03 03:46:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-03 03:46:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-03 03:46:59,358 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:46:59,364 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:47:00,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:47:06,392 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:47:09,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:47:09,066 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:47:09,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:09 BoogieIcfgContainer [2022-11-03 03:47:09,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:47:09,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:47:09,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:47:09,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:47:09,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:46:54" (1/3) ... [2022-11-03 03:47:09,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53de012c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:09, skipping insertion in model container [2022-11-03 03:47:09,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:57" (2/3) ... [2022-11-03 03:47:09,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53de012c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:47:09, skipping insertion in model container [2022-11-03 03:47:09,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:47:09" (3/3) ... [2022-11-03 03:47:09,085 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-90a4845-1-110_1a-drivers--char--ipmi--ipmi_si.ko-entry_point.cil.out.i [2022-11-03 03:47:09,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:47:09,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:47:09,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:47:09,237 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=LoopsAndPotentialCycles, 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;@62d85e9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:47:09,237 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:47:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 2133 states, 1381 states have (on average 1.4257784214337437) internal successors, (1969), 1468 states have internal predecessors, (1969), 615 states have call successors, (615), 136 states have call predecessors, (615), 135 states have return successors, (600), 566 states have call predecessors, (600), 600 states have call successors, (600) [2022-11-03 03:47:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-03 03:47:09,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:09,281 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:09,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:09,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:09,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2049125687, now seen corresponding path program 1 times [2022-11-03 03:47:09,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:09,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932754167] [2022-11-03 03:47:09,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:09,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-03 03:47:10,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:10,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932754167] [2022-11-03 03:47:10,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932754167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:10,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:10,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:47:10,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236217990] [2022-11-03 03:47:10,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:10,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:47:10,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:10,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:47:10,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:47:10,573 INFO L87 Difference]: Start difference. First operand has 2133 states, 1381 states have (on average 1.4257784214337437) internal successors, (1969), 1468 states have internal predecessors, (1969), 615 states have call successors, (615), 136 states have call predecessors, (615), 135 states have return successors, (600), 566 states have call predecessors, (600), 600 states have call successors, (600) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 03:47:15,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:24,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:28,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:28,961 INFO L93 Difference]: Finished difference Result 8416 states and 13239 transitions. [2022-11-03 03:47:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:47:28,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 103 [2022-11-03 03:47:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:29,041 INFO L225 Difference]: With dead ends: 8416 [2022-11-03 03:47:29,042 INFO L226 Difference]: Without dead ends: 6251 [2022-11-03 03:47:29,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:47:29,075 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 6267 mSDsluCounter, 8261 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6267 SdHoareTripleChecker+Valid, 11624 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:29,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6267 Valid, 11624 Invalid, 2414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 2406 Invalid, 1 Unknown, 0 Unchecked, 17.7s Time] [2022-11-03 03:47:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6251 states. [2022-11-03 03:47:29,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6251 to 6239. [2022-11-03 03:47:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6239 states, 4090 states have (on average 1.414914425427873) internal successors, (5787), 4285 states have internal predecessors, (5787), 1748 states have call successors, (1748), 401 states have call predecessors, (1748), 400 states have return successors, (1886), 1651 states have call predecessors, (1886), 1747 states have call successors, (1886) [2022-11-03 03:47:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6239 states to 6239 states and 9421 transitions. [2022-11-03 03:47:29,685 INFO L78 Accepts]: Start accepts. Automaton has 6239 states and 9421 transitions. Word has length 103 [2022-11-03 03:47:29,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:29,688 INFO L495 AbstractCegarLoop]: Abstraction has 6239 states and 9421 transitions. [2022-11-03 03:47:29,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 03:47:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 6239 states and 9421 transitions. [2022-11-03 03:47:29,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-03 03:47:29,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:29,697 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:29,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:47:29,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:29,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:29,699 INFO L85 PathProgramCache]: Analyzing trace with hash 664426745, now seen corresponding path program 1 times [2022-11-03 03:47:29,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:29,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899368466] [2022-11-03 03:47:29,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:29,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-03 03:47:30,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:30,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899368466] [2022-11-03 03:47:30,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899368466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:30,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:30,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:47:30,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778076837] [2022-11-03 03:47:30,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:30,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:47:30,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:30,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:47:30,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:47:30,402 INFO L87 Difference]: Start difference. First operand 6239 states and 9421 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 03:47:37,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:45,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:47:50,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:47:50,832 INFO L93 Difference]: Finished difference Result 24855 states and 38223 transitions. [2022-11-03 03:47:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:47:50,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2022-11-03 03:47:50,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:47:50,984 INFO L225 Difference]: With dead ends: 24855 [2022-11-03 03:47:50,984 INFO L226 Difference]: Without dead ends: 18647 [2022-11-03 03:47:51,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:47:51,033 INFO L413 NwaCegarLoop]: 4051 mSDtfsCounter, 8115 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 1162 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8115 SdHoareTripleChecker+Valid, 8672 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1162 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:47:51,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8115 Valid, 8672 Invalid, 3207 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1162 Valid, 2044 Invalid, 1 Unknown, 0 Unchecked, 19.4s Time] [2022-11-03 03:47:51,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18647 states. [2022-11-03 03:47:52,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18647 to 18635. [2022-11-03 03:47:52,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18635 states, 12234 states have (on average 1.4154814451528528) internal successors, (17317), 12809 states have internal predecessors, (17317), 5202 states have call successors, (5202), 1199 states have call predecessors, (5202), 1198 states have return successors, (6307), 4919 states have call predecessors, (6307), 5201 states have call successors, (6307) [2022-11-03 03:47:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18635 states to 18635 states and 28826 transitions. [2022-11-03 03:47:52,400 INFO L78 Accepts]: Start accepts. Automaton has 18635 states and 28826 transitions. Word has length 104 [2022-11-03 03:47:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:47:52,402 INFO L495 AbstractCegarLoop]: Abstraction has 18635 states and 28826 transitions. [2022-11-03 03:47:52,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 03:47:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 18635 states and 28826 transitions. [2022-11-03 03:47:52,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 03:47:52,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:47:52,408 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:47:52,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:47:52,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:47:52,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:47:52,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1030793023, now seen corresponding path program 1 times [2022-11-03 03:47:52,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:47:52,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898672437] [2022-11-03 03:47:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:47:52,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:47:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:47:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-03 03:47:53,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:47:53,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898672437] [2022-11-03 03:47:53,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898672437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:47:53,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:47:53,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:47:53,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269701249] [2022-11-03 03:47:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:47:53,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:47:53,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:47:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:47:53,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:47:53,078 INFO L87 Difference]: Start difference. First operand 18635 states and 28826 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 03:47:59,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:08,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:11,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:13,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:13,533 INFO L93 Difference]: Finished difference Result 74379 states and 118253 transitions. [2022-11-03 03:48:13,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:48:13,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2022-11-03 03:48:13,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:14,085 INFO L225 Difference]: With dead ends: 74379 [2022-11-03 03:48:14,095 INFO L226 Difference]: Without dead ends: 55775 [2022-11-03 03:48:14,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:48:14,259 INFO L413 NwaCegarLoop]: 4048 mSDtfsCounter, 6185 mSDsluCounter, 8221 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6185 SdHoareTripleChecker+Valid, 11451 SdHoareTripleChecker+Invalid, 2390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:14,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6185 Valid, 11451 Invalid, 2390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2381 Invalid, 2 Unknown, 0 Unchecked, 18.4s Time] [2022-11-03 03:48:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55775 states. [2022-11-03 03:48:17,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55775 to 55763. [2022-11-03 03:48:17,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55763 states, 36642 states have (on average 1.4152338846132853) internal successors, (51857), 38327 states have internal predecessors, (51857), 15528 states have call successors, (15528), 3593 states have call predecessors, (15528), 3592 states have return successors, (22052), 14711 states have call predecessors, (22052), 15527 states have call successors, (22052) [2022-11-03 03:48:17,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55763 states to 55763 states and 89437 transitions. [2022-11-03 03:48:17,992 INFO L78 Accepts]: Start accepts. Automaton has 55763 states and 89437 transitions. Word has length 105 [2022-11-03 03:48:17,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:17,993 INFO L495 AbstractCegarLoop]: Abstraction has 55763 states and 89437 transitions. [2022-11-03 03:48:17,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 03:48:17,994 INFO L276 IsEmpty]: Start isEmpty. Operand 55763 states and 89437 transitions. [2022-11-03 03:48:17,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-03 03:48:17,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:17,996 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:17,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:48:17,997 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:17,997 INFO L85 PathProgramCache]: Analyzing trace with hash -154393727, now seen corresponding path program 1 times [2022-11-03 03:48:17,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:17,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994417738] [2022-11-03 03:48:17,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:17,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-03 03:48:18,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:18,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994417738] [2022-11-03 03:48:18,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994417738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:18,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:18,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:48:18,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727488751] [2022-11-03 03:48:18,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:18,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:48:18,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:18,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:48:18,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:48:18,737 INFO L87 Difference]: Start difference. First operand 55763 states and 89437 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 03:48:35,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:37,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:44,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:48:44,136 INFO L93 Difference]: Finished difference Result 222167 states and 371254 transitions. [2022-11-03 03:48:44,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:48:44,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2022-11-03 03:48:44,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:48:46,133 INFO L225 Difference]: With dead ends: 222167 [2022-11-03 03:48:46,133 INFO L226 Difference]: Without dead ends: 166435 [2022-11-03 03:48:46,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:48:46,731 INFO L413 NwaCegarLoop]: 4044 mSDtfsCounter, 8108 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 1162 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8108 SdHoareTripleChecker+Valid, 8665 SdHoareTripleChecker+Invalid, 3210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1162 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:48:46,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8108 Valid, 8665 Invalid, 3210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1162 Valid, 2046 Invalid, 2 Unknown, 0 Unchecked, 18.5s Time] [2022-11-03 03:48:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166435 states. [2022-11-03 03:48:54,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166435 to 166369. [2022-11-03 03:48:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166369 states, 109411 states have (on average 1.415077094624855) internal successors, (154825), 114406 states have internal predecessors, (154825), 46216 states have call successors, (46216), 10743 states have call predecessors, (46216), 10741 states have return successors, (80638), 43804 states have call predecessors, (80638), 46215 states have call successors, (80638) [2022-11-03 03:48:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166369 states to 166369 states and 281679 transitions. [2022-11-03 03:48:57,947 INFO L78 Accepts]: Start accepts. Automaton has 166369 states and 281679 transitions. Word has length 106 [2022-11-03 03:48:57,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:48:57,947 INFO L495 AbstractCegarLoop]: Abstraction has 166369 states and 281679 transitions. [2022-11-03 03:48:57,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-03 03:48:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 166369 states and 281679 transitions. [2022-11-03 03:48:57,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-03 03:48:57,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:57,950 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:57,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:48:57,951 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:57,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:57,952 INFO L85 PathProgramCache]: Analyzing trace with hash 711180582, now seen corresponding path program 1 times [2022-11-03 03:48:57,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:57,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985023096] [2022-11-03 03:48:57,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:57,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-11-03 03:48:58,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:58,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985023096] [2022-11-03 03:48:58,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985023096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:58,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:58,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:48:58,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967168758] [2022-11-03 03:48:58,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:58,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:48:58,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:58,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:48:58,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:48:58,327 INFO L87 Difference]: Start difference. First operand 166369 states and 281679 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15)