./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 4fc63b2a 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_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.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_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0e5349f2aac0388d197fa32950f3e69d3339933dee46585f91772f9bda921aa4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:25:07,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:25:07,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:25:07,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:25:07,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:25:07,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:25:07,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:25:07,717 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:25:07,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:25:07,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:25:07,719 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:25:07,719 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:25:07,720 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:25:07,720 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:25:07,721 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:25:07,721 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:25:07,721 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:25:07,721 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:25:07,722 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:25:07,722 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:25:07,723 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:25:07,727 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:25:07,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:25:07,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:25:07,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:25:07,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:25:07,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:25:07,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:25:07,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:25:07,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:25:07,729 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:25:07,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:25:07,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:25:07,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:25:07,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:25:07,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:25:07,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:25:07,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:25:07,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:25:07,736 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:25:07,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:25:07,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:25:07,737 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:25:07,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:25:07,738 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e5349f2aac0388d197fa32950f3e69d3339933dee46585f91772f9bda921aa4 [2024-11-02 12:25:08,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:25:08,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:25:08,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:25:08,078 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:25:08,079 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:25:08,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/../../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 Unable to find full path for "g++" [2024-11-02 12:25:10,192 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:25:10,666 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:25:10,670 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/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 [2024-11-02 12:25:10,705 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/data/d19903729/bee645de7ada4b0aa79501ce162c6bf1/FLAGd856aff70 [2024-11-02 12:25:10,727 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/data/d19903729/bee645de7ada4b0aa79501ce162c6bf1 [2024-11-02 12:25:10,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:25:10,732 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:25:10,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:25:10,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:25:10,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:25:10,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:25:10" (1/1) ... [2024-11-02 12:25:10,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2451e010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:10, skipping insertion in model container [2024-11-02 12:25:10,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:25:10" (1/1) ... [2024-11-02 12:25:10,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:25:11,399 WARN L1334 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3059] [2024-11-02 12:25:11,400 WARN L1334 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3060-3061] [2024-11-02 12:25:11,563 WARN L251 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_a275bec3-7747-4e94-90ad-e490e8c8eaed/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] [2024-11-02 12:25:12,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:25:12,221 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:25:12,318 WARN L1334 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3059] [2024-11-02 12:25:12,319 WARN L1334 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3060-3061] [2024-11-02 12:25:12,325 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] [2024-11-02 12:25:12,327 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] [2024-11-02 12:25:12,332 WARN L251 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_a275bec3-7747-4e94-90ad-e490e8c8eaed/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] [2024-11-02 12:25:12,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:25:12,545 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:25:12,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12 WrapperNode [2024-11-02 12:25:12,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:25:12,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:25:12,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:25:12,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:25:12,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,765 INFO L138 Inliner]: procedures = 121, calls = 1489, calls flagged for inlining = 38, calls inlined = 36, statements flattened = 2452 [2024-11-02 12:25:12,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:25:12,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:25:12,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:25:12,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:25:12,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:12,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:13,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:25:13,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:25:13,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:25:13,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:25:13,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (1/1) ... [2024-11-02 12:25:13,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:25:13,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:25:13,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:25:13,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a275bec3-7747-4e94-90ad-e490e8c8eaed/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:25:13,076 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-11-02 12:25:13,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-11-02 12:25:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-11-02 12:25:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-11-02 12:25:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-11-02 12:25:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-11-02 12:25:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-11-02 12:25:13,077 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-11-02 12:25:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:25:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:25:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-02 12:25:13,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-02 12:25:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:25:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2024-11-02 12:25:13,079 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2024-11-02 12:25:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-11-02 12:25:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-11-02 12:25:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2024-11-02 12:25:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2024-11-02 12:25:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:25:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:25:13,081 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2024-11-02 12:25:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2024-11-02 12:25:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2024-11-02 12:25:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2024-11-02 12:25:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2024-11-02 12:25:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2024-11-02 12:25:13,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:25:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2024-11-02 12:25:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2024-11-02 12:25:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-02 12:25:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-02 12:25:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-02 12:25:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-02 12:25:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-02 12:25:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-02 12:25:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:25:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:25:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2024-11-02 12:25:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2024-11-02 12:25:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:25:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2024-11-02 12:25:13,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2024-11-02 12:25:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2024-11-02 12:25:13,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2024-11-02 12:25:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-02 12:25:13,087 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-02 12:25:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:25:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-11-02 12:25:13,087 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-11-02 12:25:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-02 12:25:13,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-02 12:25:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:25:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:25:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2024-11-02 12:25:13,088 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2024-11-02 12:25:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-02 12:25:13,088 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-02 12:25:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2024-11-02 12:25:13,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2024-11-02 12:25:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:25:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2024-11-02 12:25:13,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2024-11-02 12:25:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2024-11-02 12:25:13,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2024-11-02 12:25:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_20 [2024-11-02 12:25:13,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_20 [2024-11-02 12:25:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2024-11-02 12:25:13,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2024-11-02 12:25:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-11-02 12:25:13,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-11-02 12:25:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:25:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:25:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-11-02 12:25:13,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-11-02 12:25:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-11-02 12:25:13,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-11-02 12:25:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-02 12:25:13,092 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-02 12:25:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-02 12:25:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-02 12:25:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2024-11-02 12:25:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2024-11-02 12:25:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-11-02 12:25:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-11-02 12:25:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2024-11-02 12:25:13,093 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2024-11-02 12:25:13,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-02 12:25:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-02 12:25:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2024-11-02 12:25:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2024-11-02 12:25:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:25:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2024-11-02 12:25:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2024-11-02 12:25:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2024-11-02 12:25:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2024-11-02 12:25:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2024-11-02 12:25:13,094 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2024-11-02 12:25:13,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-02 12:25:13,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-02 12:25:13,096 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-02 12:25:13,096 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-02 12:25:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:25:13,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:25:13,097 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-11-02 12:25:13,098 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-11-02 12:25:13,098 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-02 12:25:13,098 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-02 12:25:13,651 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:25:13,656 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:25:13,860 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-02 12:25:24,143 INFO L? ?]: Removed 714 outVars from TransFormulas that were not future-live. [2024-11-02 12:25:24,143 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:25:25,063 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:25:25,064 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-02 12:25:25,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:25 BoogieIcfgContainer [2024-11-02 12:25:25,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:25:25,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:25:25,070 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:25:25,073 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:25:25,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:25:10" (1/3) ... [2024-11-02 12:25:25,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca555e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:25:25, skipping insertion in model container [2024-11-02 12:25:25,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:25:12" (2/3) ... [2024-11-02 12:25:25,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca555e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:25:25, skipping insertion in model container [2024-11-02 12:25:25,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:25" (3/3) ... [2024-11-02 12:25:25,076 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 [2024-11-02 12:25:25,097 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:25:25,097 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:25:25,203 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:25:25,211 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@23861a80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:25:25,211 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:25:25,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 640 states, 400 states have (on average 1.3475) internal successors, (539), 419 states have internal predecessors, (539), 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) [2024-11-02 12:25:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-02 12:25:25,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:25,266 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-02 12:25:25,271 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:25:25,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:25,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1922206069, now seen corresponding path program 1 times [2024-11-02 12:25:25,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:25,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720800698] [2024-11-02 12:25:25,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:25,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-02 12:25:27,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:25:27,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720800698] [2024-11-02 12:25:27,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720800698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:25:27,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:25:27,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:25:27,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006264198] [2024-11-02 12:25:27,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:25:27,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:25:27,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:25:27,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:25:27,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:25:27,601 INFO L87 Difference]: Start difference. First operand has 640 states, 400 states have (on average 1.3475) internal successors, (539), 419 states have internal predecessors, (539), 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 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:25:29,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:25:31,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:25:31,789 INFO L93 Difference]: Finished difference Result 1567 states and 2290 transitions. [2024-11-02 12:25:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:25:31,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 106 [2024-11-02 12:25:31,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:25:31,826 INFO L225 Difference]: With dead ends: 1567 [2024-11-02 12:25:31,827 INFO L226 Difference]: Without dead ends: 898 [2024-11-02 12:25:31,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:25:31,845 INFO L432 NwaCegarLoop]: 990 mSDtfsCounter, 444 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:25:31,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1747 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-02 12:25:31,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-02 12:25:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2024-11-02 12:25:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 557 states have (on average 1.3231597845601437) internal successors, (737), 573 states have internal predecessors, (737), 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) [2024-11-02 12:25:32,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1272 transitions. [2024-11-02 12:25:32,013 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1272 transitions. Word has length 106 [2024-11-02 12:25:32,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:25:32,014 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1272 transitions. [2024-11-02 12:25:32,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 12:25:32,014 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1272 transitions. [2024-11-02 12:25:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-02 12:25:32,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:32,033 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-02 12:25:32,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:25:32,033 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:25:32,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:32,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1043638101, now seen corresponding path program 1 times [2024-11-02 12:25:32,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:32,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998255154] [2024-11-02 12:25:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:32,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-02 12:25:33,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:25:33,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998255154] [2024-11-02 12:25:33,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998255154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:25:33,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:25:33,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:25:33,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071624740] [2024-11-02 12:25:33,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:25:33,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:25:33,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:25:33,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:25:33,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:25:33,823 INFO L87 Difference]: Start difference. First operand 898 states and 1272 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-02 12:25:35,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:25:37,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:25:39,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:25:39,630 INFO L93 Difference]: Finished difference Result 1795 states and 2554 transitions. [2024-11-02 12:25:39,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:25:39,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 143 [2024-11-02 12:25:39,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:25:39,643 INFO L225 Difference]: With dead ends: 1795 [2024-11-02 12:25:39,643 INFO L226 Difference]: Without dead ends: 922 [2024-11-02 12:25:39,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:25:39,650 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 12 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-02 12:25:39,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1528 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2024-11-02 12:25:39,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-11-02 12:25:39,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 900. [2024-11-02 12:25:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 559 states have (on average 1.3220035778175314) internal successors, (739), 575 states have internal predecessors, (739), 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) [2024-11-02 12:25:39,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1274 transitions. [2024-11-02 12:25:39,734 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1274 transitions. Word has length 143 [2024-11-02 12:25:39,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:25:39,734 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1274 transitions. [2024-11-02 12:25:39,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-02 12:25:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1274 transitions. [2024-11-02 12:25:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-02 12:25:39,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:39,742 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-02 12:25:39,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:25:39,742 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:25:39,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:39,743 INFO L85 PathProgramCache]: Analyzing trace with hash 476105883, now seen corresponding path program 1 times [2024-11-02 12:25:39,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:25:39,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989989375] [2024-11-02 12:25:39,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:39,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:25:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:25:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-02 12:25:41,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:25:41,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989989375] [2024-11-02 12:25:41,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989989375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:25:41,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:25:41,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:25:41,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468504944] [2024-11-02 12:25:41,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:25:41,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:25:41,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:25:41,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:25:41,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:25:41,500 INFO L87 Difference]: Start difference. First operand 900 states and 1274 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)