./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--block--paride--pt.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0e5349f2aac0388d197fa32950f3e69d3339933dee46585f91772f9bda921aa4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:16,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:16,678 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:56:16,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:16,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:16,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:16,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:16,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:16,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:16,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:16,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:16,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:16,717 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:16,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:16,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:16,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:16,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:16,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:16,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:16,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:16,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:16,723 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:16,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:16,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:16,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:16,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:16,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:16,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:16,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:56:16,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:16,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:16,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:16,730 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:56:16,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:16,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:16,731 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:16,732 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e5349f2aac0388d197fa32950f3e69d3339933dee46585f91772f9bda921aa4 [2023-11-19 07:56:17,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:17,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:17,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:17,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:17,040 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:17,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2023-11-19 07:56:20,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:20,736 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:20,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2023-11-19 07:56:20,791 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/data/ddf773cda/8fa269e3105c48f18b5b02bbcd799328/FLAGa41f27032 [2023-11-19 07:56:20,810 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/data/ddf773cda/8fa269e3105c48f18b5b02bbcd799328 [2023-11-19 07:56:20,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:20,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:20,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:20,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:20,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:20,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:20" (1/1) ... [2023-11-19 07:56:20,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65cbda83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:20, skipping insertion in model container [2023-11-19 07:56:20,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:20" (1/1) ... [2023-11-19 07:56:20,968 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:21,458 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3059] [2023-11-19 07:56:21,460 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3060-3061] [2023-11-19 07:56:21,618 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i[90990,91003] [2023-11-19 07:56:22,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:22,157 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:22,280 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3059] [2023-11-19 07:56:22,281 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3060-3061] [2023-11-19 07:56:22,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [3171] [2023-11-19 07:56:22,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [3179-3180] [2023-11-19 07:56:22,293 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i[90990,91003] [2023-11-19 07:56:22,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:22,439 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:22,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22 WrapperNode [2023-11-19 07:56:22,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:22,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:22,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:22,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:22,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,629 INFO L138 Inliner]: procedures = 119, calls = 789, calls flagged for inlining = 38, calls inlined = 36, statements flattened = 1734 [2023-11-19 07:56:22,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:22,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:22,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:22,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:22,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:22,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:22,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:22,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:22,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (1/1) ... [2023-11-19 07:56:22,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:22,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:22,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:22,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57d40ecd-0a67-473d-bb91-81c1f4de7024/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:22,877 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2023-11-19 07:56:22,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2023-11-19 07:56:22,878 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2023-11-19 07:56:22,878 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2023-11-19 07:56:22,878 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2023-11-19 07:56:22,878 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2023-11-19 07:56:22,878 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2023-11-19 07:56:22,879 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2023-11-19 07:56:22,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:56:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:56:22,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:56:22,881 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2023-11-19 07:56:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2023-11-19 07:56:22,882 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2023-11-19 07:56:22,882 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2023-11-19 07:56:22,882 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2023-11-19 07:56:22,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2023-11-19 07:56:22,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:56:22,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:56:22,883 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2023-11-19 07:56:22,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2023-11-19 07:56:22,884 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2023-11-19 07:56:22,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2023-11-19 07:56:22,884 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2023-11-19 07:56:22,884 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2023-11-19 07:56:22,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:56:22,885 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2023-11-19 07:56:22,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2023-11-19 07:56:22,886 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:56:22,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:56:22,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:56:22,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:56:22,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:56:22,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:56:22,887 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:56:22,888 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:56:22,888 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2023-11-19 07:56:22,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2023-11-19 07:56:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:56:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2023-11-19 07:56:22,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2023-11-19 07:56:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2023-11-19 07:56:22,889 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2023-11-19 07:56:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 07:56:22,890 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 07:56:22,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:22,890 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-19 07:56:22,890 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-19 07:56:22,890 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 07:56:22,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 07:56:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:56:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:56:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2023-11-19 07:56:22,891 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2023-11-19 07:56:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-19 07:56:22,891 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-19 07:56:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2023-11-19 07:56:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2023-11-19 07:56:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:56:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2023-11-19 07:56:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2023-11-19 07:56:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2023-11-19 07:56:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2023-11-19 07:56:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_20 [2023-11-19 07:56:22,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_20 [2023-11-19 07:56:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-19 07:56:22,894 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-19 07:56:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2023-11-19 07:56:22,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2023-11-19 07:56:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:56:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:56:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2023-11-19 07:56:22,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2023-11-19 07:56:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2023-11-19 07:56:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2023-11-19 07:56:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:56:22,896 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:56:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:56:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:56:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2023-11-19 07:56:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2023-11-19 07:56:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2023-11-19 07:56:22,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2023-11-19 07:56:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2023-11-19 07:56:22,898 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2023-11-19 07:56:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 07:56:22,898 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 07:56:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2023-11-19 07:56:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2023-11-19 07:56:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2023-11-19 07:56:22,899 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2023-11-19 07:56:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2023-11-19 07:56:22,900 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2023-11-19 07:56:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2023-11-19 07:56:22,900 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2023-11-19 07:56:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:56:22,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:56:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:56:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:56:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2023-11-19 07:56:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2023-11-19 07:56:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:56:22,901 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:56:23,347 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:23,352 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:23,550 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:56:31,317 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:31,343 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:31,343 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 07:56:31,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:31 BoogieIcfgContainer [2023-11-19 07:56:31,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:31,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:31,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:31,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:31,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:20" (1/3) ... [2023-11-19 07:56:31,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274c0b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:31, skipping insertion in model container [2023-11-19 07:56:31,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:22" (2/3) ... [2023-11-19 07:56:31,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274c0b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:31, skipping insertion in model container [2023-11-19 07:56:31,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:31" (3/3) ... [2023-11-19 07:56:31,374 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2023-11-19 07:56:31,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:31,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:56:31,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:31,514 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f637bfe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:31,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:56:31,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 841 states, 601 states have (on average 1.4093178036605658) internal successors, (847), 620 states have internal predecessors, (847), 196 states have call successors, (196), 47 states have call predecessors, (196), 46 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) [2023-11-19 07:56:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-19 07:56:31,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:31,579 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1] [2023-11-19 07:56:31,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:56:31,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:31,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1710200619, now seen corresponding path program 1 times [2023-11-19 07:56:31,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:31,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742531962] [2023-11-19 07:56:31,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:31,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:32,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:56:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:32,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:56:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:32,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:56:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:56:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:32,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:56:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-19 07:56:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 07:56:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:56:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:56:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:56:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:56:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:56:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-19 07:56:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:33,764 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 07:56:33,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:33,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742531962] [2023-11-19 07:56:33,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742531962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:33,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:33,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:33,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604067800] [2023-11-19 07:56:33,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:33,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:56:33,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:33,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:56:33,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:56:33,826 INFO L87 Difference]: Start difference. First operand has 841 states, 601 states have (on average 1.4093178036605658) internal successors, (847), 620 states have internal predecessors, (847), 196 states have call successors, (196), 47 states have call predecessors, (196), 46 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:56:40,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:42,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:44,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:46,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:49,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:51,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:53,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:56:57,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:00,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:02,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:02,223 INFO L93 Difference]: Finished difference Result 2094 states and 3136 transitions. [2023-11-19 07:57:02,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:02,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2023-11-19 07:57:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:02,265 INFO L225 Difference]: With dead ends: 2094 [2023-11-19 07:57:02,267 INFO L226 Difference]: Without dead ends: 1194 [2023-11-19 07:57:02,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:02,286 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 756 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 271 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:02,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 2945 Invalid, 1774 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [271 Valid, 1496 Invalid, 7 Unknown, 0 Unchecked, 28.0s Time] [2023-11-19 07:57:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2023-11-19 07:57:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1158. [2023-11-19 07:57:02,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 817 states have (on average 1.3745410036719705) internal successors, (1123), 833 states have internal predecessors, (1123), 268 states have call successors, (268), 73 states have call predecessors, (268), 72 states have return successors, (267), 267 states have call predecessors, (267), 267 states have call successors, (267) [2023-11-19 07:57:02,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1658 transitions. [2023-11-19 07:57:02,504 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1658 transitions. Word has length 130 [2023-11-19 07:57:02,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:02,505 INFO L495 AbstractCegarLoop]: Abstraction has 1158 states and 1658 transitions. [2023-11-19 07:57:02,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 07:57:02,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1658 transitions. [2023-11-19 07:57:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-19 07:57:02,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:02,527 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:02,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:02,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:02,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:02,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1085122696, now seen corresponding path program 1 times [2023-11-19 07:57:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:02,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308022569] [2023-11-19 07:57:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:02,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:57:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:57:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:57:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-19 07:57:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-19 07:57:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:57:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:57:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:57:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:57:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:57:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:57:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:57:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:57:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:57:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:57:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:57:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-19 07:57:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 07:57:03,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:03,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308022569] [2023-11-19 07:57:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308022569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:03,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:03,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:03,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924931795] [2023-11-19 07:57:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:03,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:57:03,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:03,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:57:03,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:03,916 INFO L87 Difference]: Start difference. First operand 1158 states and 1658 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-19 07:57:09,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:11,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:13,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:16,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []