./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta --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 a6081edb60f9c6ed50ae2f2edfb068029f65a703b32e64840408c28b9c1fef5b --- 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-dbf71c6-m [2022-10-17 17:39:11,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:39:11,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:39:11,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:39:11,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:39:11,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:39:11,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:39:11,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:39:11,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:39:11,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:39:11,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:39:11,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:39:11,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:39:11,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:39:11,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:39:11,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:39:11,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:39:11,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:39:11,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:39:11,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:39:11,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:39:11,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:39:11,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:39:11,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:39:11,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:39:11,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:39:11,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:39:11,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:39:11,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:39:11,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:39:11,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:39:11,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:39:11,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:39:11,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:39:11,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:39:11,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:39:11,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:39:11,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:39:11,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:39:11,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:39:11,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:39:11,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:39:11,569 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:39:11,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:39:11,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:39:11,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:39:11,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:39:11,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:39:11,572 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:39:11,572 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:39:11,572 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:39:11,573 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:39:11,573 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:39:11,573 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:39:11,574 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:39:11,574 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:39:11,574 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:39:11,575 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:39:11,575 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:39:11,575 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:39:11,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:39:11,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:39:11,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:39:11,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:39:11,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:39:11,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:39:11,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:39:11,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:39:11,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:39:11,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:39:11,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:39:11,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:39:11,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:39:11,586 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:39:11,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:39:11,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:39:11,587 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:39:11,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:39:11,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:39:11,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:39:11,589 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_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6081edb60f9c6ed50ae2f2edfb068029f65a703b32e64840408c28b9c1fef5b [2022-10-17 17:39:11,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:39:11,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:39:11,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:39:11,917 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:39:11,918 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:39:11,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2022-10-17 17:39:12,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/data/3a93da278/296f2d84011640649b50f249714f3667/FLAG176e0db43 [2022-10-17 17:39:12,967 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:39:12,968 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2022-10-17 17:39:13,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/data/3a93da278/296f2d84011640649b50f249714f3667/FLAG176e0db43 [2022-10-17 17:39:13,424 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/data/3a93da278/296f2d84011640649b50f249714f3667 [2022-10-17 17:39:13,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:39:13,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:39:13,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:39:13,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:39:13,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:39:13,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:39:13" (1/1) ... [2022-10-17 17:39:13,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fca5aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:13, skipping insertion in model container [2022-10-17 17:39:13,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:39:13" (1/1) ... [2022-10-17 17:39:13,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:39:13,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:39:14,092 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2022-10-17 17:39:14,093 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4407-4408] [2022-10-17 17:39:14,497 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_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i[136345,136358] [2022-10-17 17:39:15,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:39:15,686 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:39:15,800 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2022-10-17 17:39:15,801 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4407-4408] [2022-10-17 17:39:15,823 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_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i[136345,136358] [2022-10-17 17:39:15,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:39:16,108 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:39:16,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16 WrapperNode [2022-10-17 17:39:16,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:39:16,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:39:16,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:39:16,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:39:16,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,455 INFO L138 Inliner]: procedures = 238, calls = 1473, calls flagged for inlining = 139, calls inlined = 137, statements flattened = 4019 [2022-10-17 17:39:16,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:39:16,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:39:16,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:39:16,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:39:16,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:39:16,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:39:16,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:39:16,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:39:16,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (1/1) ... [2022-10-17 17:39:16,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:39:16,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:39:16,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:39:16,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:39:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_dev [2022-10-17 17:39:16,823 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_dev [2022-10-17 17:39:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:39:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_complete_request [2022-10-17 17:39:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_complete_request [2022-10-17 17:39:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:39:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 17:39:16,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 17:39:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_request_ring [2022-10-17 17:39:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_request_ring [2022-10-17 17:39:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_completion_ring [2022-10-17 17:39:16,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_completion_ring [2022-10-17 17:39:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmap_buffers [2022-10-17 17:39:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmap_buffers [2022-10-17 17:39:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-17 17:39:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-17 17:39:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:39:16,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:39:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-17 17:39:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-10-17 17:39:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-10-17 17:39:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_write [2022-10-17 17:39:16,827 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_write [2022-10-17 17:39:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 17:39:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 17:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2022-10-17 17:39:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2022-10-17 17:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-10-17 17:39:16,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-10-17 17:39:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_remove [2022-10-17 17:39:16,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_remove [2022-10-17 17:39:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-10-17 17:39:16,829 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-10-17 17:39:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-17 17:39:16,829 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-17 17:39:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_resources [2022-10-17 17:39:16,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_resources [2022-10-17 17:39:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 17:39:16,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 17:39:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:39:16,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:39:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-10-17 17:39:16,831 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-10-17 17:39:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_context [2022-10-17 17:39:16,831 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_context [2022-10-17 17:39:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:39:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 17:39:16,832 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 17:39:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:39:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-10-17 17:39:16,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-10-17 17:39:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 17:39:16,833 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 17:39:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure __pvscsi_shutdown [2022-10-17 17:39:16,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __pvscsi_shutdown [2022-10-17 17:39:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_write_cmd_desc [2022-10-17 17:39:16,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_write_cmd_desc [2022-10-17 17:39:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-10-17 17:39:16,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-10-17 17:39:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:39:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:39:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_read [2022-10-17 17:39:16,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_read [2022-10-17 17:39:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure ll_adapter_reset [2022-10-17 17:39:16,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_adapter_reset [2022-10-17 17:39:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown_intr [2022-10-17 17:39:16,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown_intr [2022-10-17 17:39:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-10-17 17:39:16,836 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-10-17 17:39:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-10-17 17:39:16,836 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-10-17 17:39:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-10-17 17:39:16,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-10-17 17:39:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:39:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 17:39:16,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 17:39:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-17 17:39:16,837 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-17 17:39:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:39:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:39:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-17 17:39:16,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-17 17:39:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-17 17:39:16,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-17 17:39:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-10-17 17:39:16,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-10-17 17:39:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-17 17:39:16,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-17 17:39:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:39:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-17 17:39:16,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-17 17:39:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_get [2022-10-17 17:39:16,840 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_get [2022-10-17 17:39:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_msg_pending [2022-10-17 17:39:16,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_msg_pending [2022-10-17 17:39:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:39:16,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:39:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:39:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown [2022-10-17 17:39:16,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown [2022-10-17 17:39:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2022-10-17 17:39:16,841 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2022-10-17 17:39:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:39:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:39:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmask_intr [2022-10-17 17:39:16,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmask_intr [2022-10-17 17:39:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_map_context [2022-10-17 17:39:16,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_map_context [2022-10-17 17:39:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 17:39:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-17 17:39:16,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-17 17:39:16,843 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:39:16,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:39:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-10-17 17:39:16,844 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-10-17 17:39:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_lookup [2022-10-17 17:39:16,844 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_lookup [2022-10-17 17:39:16,844 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-17 17:39:16,845 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-17 17:39:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_setup_all_rings [2022-10-17 17:39:16,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_setup_all_rings [2022-10-17 17:39:16,845 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-10-17 17:39:16,845 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-10-17 17:39:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:39:16,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:39:16,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:39:17,614 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:39:17,620 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:39:18,259 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 17:39:31,561 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:39:33,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:39:33,215 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 17:39:33,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:39:33 BoogieIcfgContainer [2022-10-17 17:39:33,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:39:33,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:39:33,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:39:33,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:39:33,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:39:13" (1/3) ... [2022-10-17 17:39:33,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6997fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:39:33, skipping insertion in model container [2022-10-17 17:39:33,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:39:16" (2/3) ... [2022-10-17 17:39:33,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6997fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:39:33, skipping insertion in model container [2022-10-17 17:39:33,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:39:33" (3/3) ... [2022-10-17 17:39:33,232 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2022-10-17 17:39:33,252 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:39:33,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:39:33,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:39:33,367 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;@78d035c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:39:33,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 17:39:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 435 states have (on average 1.3586206896551725) internal successors, (591), 459 states have internal predecessors, (591), 205 states have call successors, (205), 54 states have call predecessors, (205), 53 states have return successors, (199), 196 states have call predecessors, (199), 199 states have call successors, (199) [2022-10-17 17:39:33,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-17 17:39:33,426 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:39:33,427 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:39:33,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:39:33,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:39:33,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1769301511, now seen corresponding path program 1 times [2022-10-17 17:39:33,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:39:33,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867260115] [2022-10-17 17:39:33,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:39:33,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:39:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:39:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-10-17 17:39:34,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:39:34,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867260115] [2022-10-17 17:39:34,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867260115] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:39:34,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:39:34,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:39:34,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313581038] [2022-10-17 17:39:34,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:39:34,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:39:34,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:39:34,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:39:34,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:39:34,877 INFO L87 Difference]: Start difference. First operand has 695 states, 435 states have (on average 1.3586206896551725) internal successors, (591), 459 states have internal predecessors, (591), 205 states have call successors, (205), 54 states have call predecessors, (205), 53 states have return successors, (199), 196 states have call predecessors, (199), 199 states have call successors, (199) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 17:39:37,052 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 [] [2022-10-17 17:39:39,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:39:39,435 INFO L93 Difference]: Finished difference Result 1863 states and 2650 transitions. [2022-10-17 17:39:39,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:39:39,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 158 [2022-10-17 17:39:39,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:39:39,468 INFO L225 Difference]: With dead ends: 1863 [2022-10-17 17:39:39,468 INFO L226 Difference]: Without dead ends: 1142 [2022-10-17 17:39:39,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:39:39,493 INFO L413 NwaCegarLoop]: 1132 mSDtfsCounter, 662 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-10-17 17:39:39,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1964 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-10-17 17:39:39,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2022-10-17 17:39:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1141. [2022-10-17 17:39:39,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 709 states have (on average 1.315937940761636) internal successors, (933), 737 states have internal predecessors, (933), 333 states have call successors, (333), 99 states have call predecessors, (333), 98 states have return successors, (332), 326 states have call predecessors, (332), 332 states have call successors, (332) [2022-10-17 17:39:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1598 transitions. [2022-10-17 17:39:39,666 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1598 transitions. Word has length 158 [2022-10-17 17:39:39,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:39:39,667 INFO L495 AbstractCegarLoop]: Abstraction has 1141 states and 1598 transitions. [2022-10-17 17:39:39,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-17 17:39:39,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1598 transitions. [2022-10-17 17:39:39,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-10-17 17:39:39,689 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:39:39,689 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:39:39,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:39:39,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 17:39:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:39:39,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1715793682, now seen corresponding path program 1 times [2022-10-17 17:39:39,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:39:39,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120596002] [2022-10-17 17:39:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:39:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:39:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:39:41,526 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-10-17 17:39:41,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:39:41,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120596002] [2022-10-17 17:39:41,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120596002] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 17:39:41,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425328915] [2022-10-17 17:39:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:39:41,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 17:39:41,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:39:41,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 17:39:41,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_977fe9f4-9c19-4c3e-9dcb-99ff54e835d6/bin/utaipan-G1rejxKTta/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 17:39:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:39:43,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 4475 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 17:39:43,404 INFO L286 TraceCheckSpWp]: Computing forward predicates...