./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.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_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/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_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/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_e97a09ff-f4b7-4445-90cb-72b03c805f81/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 e4e522f7269f01a0f0108ec2341cf17a6d715eaf63b892b25236d9e51e23a874 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:36:31,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:36:31,919 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:36:31,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:36:31,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:36:31,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:36:31,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:36:31,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:36:31,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:36:31,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:36:31,975 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:36:31,976 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:36:31,977 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:36:31,979 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:36:31,980 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:36:31,980 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:36:31,980 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:36:31,981 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:36:31,981 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:36:31,981 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:36:31,981 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:36:31,986 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:36:31,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:36:31,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:36:31,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:36:31,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:36:31,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:36:31,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:36:31,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:36:31,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:36:31,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:36:31,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:36:31,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:36:31,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:36:31,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:36:31,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:31,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:36:31,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:36:31,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:36:31,991 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:36:31,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:36:31,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:36:31,993 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:36:31,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:36:31,994 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_e97a09ff-f4b7-4445-90cb-72b03c805f81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4e522f7269f01a0f0108ec2341cf17a6d715eaf63b892b25236d9e51e23a874 [2024-11-02 12:36:32,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:36:32,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:36:32,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:36:32,374 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:36:32,375 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:36:32,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i Unable to find full path for "g++" [2024-11-02 12:36:34,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:36:35,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:36:35,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2024-11-02 12:36:35,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/data/8b0190c47/c7eddd9e3bb84492b6f7269a73078ca2/FLAG215780997 [2024-11-02 12:36:35,272 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/data/8b0190c47/c7eddd9e3bb84492b6f7269a73078ca2 [2024-11-02 12:36:35,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:36:35,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:36:35,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:35,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:36:35,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:36:35,290 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:35" (1/1) ... [2024-11-02 12:36:35,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105b391d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:35, skipping insertion in model container [2024-11-02 12:36:35,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:35" (1/1) ... [2024-11-02 12:36:35,373 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:36:36,330 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_e97a09ff-f4b7-4445-90cb-72b03c805f81/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i[71148,71161] [2024-11-02 12:36:36,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:36:36,380 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:36:36,567 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_e97a09ff-f4b7-4445-90cb-72b03c805f81/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i[71148,71161] [2024-11-02 12:36:36,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:36:36,641 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:36:36,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36 WrapperNode [2024-11-02 12:36:36,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:36,643 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:36:36,643 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:36:36,643 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:36:36,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,771 INFO L138 Inliner]: procedures = 102, calls = 421, calls flagged for inlining = 49, calls inlined = 44, statements flattened = 1156 [2024-11-02 12:36:36,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:36:36,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:36:36,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:36:36,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:36:36,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:36:36,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:36:36,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:36:36,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:36:36,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (1/1) ... [2024-11-02 12:36:36,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:36,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:36,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:36:36,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:36:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:36:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 12:36:37,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:36:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:36:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:36:37,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:36:37,021 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 12:36:37,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 12:36:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:36:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-02 12:36:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-02 12:36:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2024-11-02 12:36:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2024-11-02 12:36:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:36:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:36:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2024-11-02 12:36:37,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2024-11-02 12:36:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:36:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2024-11-02 12:36:37,027 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2024-11-02 12:36:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:36:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2024-11-02 12:36:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2024-11-02 12:36:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:36:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-02 12:36:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-02 12:36:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2024-11-02 12:36:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2024-11-02 12:36:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-02 12:36:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-02 12:36:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:36:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:36:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2024-11-02 12:36:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2024-11-02 12:36:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2024-11-02 12:36:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2024-11-02 12:36:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-02 12:36:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-02 12:36:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-02 12:36:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-02 12:36:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-02 12:36:37,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-02 12:36:37,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:36:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2024-11-02 12:36:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2024-11-02 12:36:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2024-11-02 12:36:37,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2024-11-02 12:36:37,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 12:36:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-02 12:36:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-02 12:36:37,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:36:37,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:36:37,417 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:36:37,421 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:36:40,919 INFO L? ?]: Removed 485 outVars from TransFormulas that were not future-live. [2024-11-02 12:36:40,920 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:36:41,243 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:36:41,243 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-02 12:36:41,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:41 BoogieIcfgContainer [2024-11-02 12:36:41,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:36:41,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:36:41,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:36:41,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:36:41,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:36:35" (1/3) ... [2024-11-02 12:36:41,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f1409f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:36:41, skipping insertion in model container [2024-11-02 12:36:41,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:36" (2/3) ... [2024-11-02 12:36:41,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f1409f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:36:41, skipping insertion in model container [2024-11-02 12:36:41,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:41" (3/3) ... [2024-11-02 12:36:41,254 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2024-11-02 12:36:41,273 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:36:41,273 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:36:41,357 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:36:41,364 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;@12644693, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:36:41,365 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:36:41,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 217 states, 143 states have (on average 1.3636363636363635) internal successors, (195), 149 states have internal predecessors, (195), 54 states have call successors, (54), 18 states have call predecessors, (54), 18 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-02 12:36:41,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-02 12:36:41,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:41,386 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:41,387 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:41,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:41,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1220992841, now seen corresponding path program 1 times [2024-11-02 12:36:41,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:41,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677538618] [2024-11-02 12:36:41,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:41,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:42,443 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-02 12:36:42,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:42,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677538618] [2024-11-02 12:36:42,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677538618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:42,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:42,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:36:42,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610326633] [2024-11-02 12:36:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:42,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:36:42,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:42,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:36:42,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:42,491 INFO L87 Difference]: Start difference. First operand has 217 states, 143 states have (on average 1.3636363636363635) internal successors, (195), 149 states have internal predecessors, (195), 54 states have call successors, (54), 18 states have call predecessors, (54), 18 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:36:44,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:36:46,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:36:48,554 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 12:36:49,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:49,428 INFO L93 Difference]: Finished difference Result 431 states and 605 transitions. [2024-11-02 12:36:49,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:36:49,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2024-11-02 12:36:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:49,443 INFO L225 Difference]: With dead ends: 431 [2024-11-02 12:36:49,443 INFO L226 Difference]: Without dead ends: 211 [2024-11-02 12:36:49,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:49,450 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 0 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:49,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 724 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2024-11-02 12:36:49,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-02 12:36:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-02 12:36:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 141 states have (on average 1.3404255319148937) internal successors, (189), 145 states have internal predecessors, (189), 52 states have call successors, (52), 18 states have call predecessors, (52), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-02 12:36:49,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2024-11-02 12:36:49,522 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 291 transitions. Word has length 93 [2024-11-02 12:36:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:49,523 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 291 transitions. [2024-11-02 12:36:49,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-02 12:36:49,524 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 291 transitions. [2024-11-02 12:36:49,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-02 12:36:49,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:49,534 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:49,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:36:49,534 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:49,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:49,535 INFO L85 PathProgramCache]: Analyzing trace with hash -60652522, now seen corresponding path program 1 times [2024-11-02 12:36:49,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:49,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772111415] [2024-11-02 12:36:49,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:49,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-02 12:36:50,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:50,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772111415] [2024-11-02 12:36:50,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772111415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:50,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:50,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:36:50,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99613391] [2024-11-02 12:36:50,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:50,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:36:50,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:50,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:36:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:50,513 INFO L87 Difference]: Start difference. First operand 211 states and 291 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 12:36:52,529 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 12:36:53,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:53,959 INFO L93 Difference]: Finished difference Result 619 states and 860 transitions. [2024-11-02 12:36:53,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:36:53,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2024-11-02 12:36:53,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:53,967 INFO L225 Difference]: With dead ends: 619 [2024-11-02 12:36:53,967 INFO L226 Difference]: Without dead ends: 615 [2024-11-02 12:36:53,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:36:53,970 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 515 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:53,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 776 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 306 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2024-11-02 12:36:53,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-11-02 12:36:54,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 615. [2024-11-02 12:36:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 413 states have (on average 1.3389830508474576) internal successors, (553), 423 states have internal predecessors, (553), 150 states have call successors, (150), 52 states have call predecessors, (150), 51 states have return successors, (152), 148 states have call predecessors, (152), 148 states have call successors, (152) [2024-11-02 12:36:54,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 855 transitions. [2024-11-02 12:36:54,047 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 855 transitions. Word has length 97 [2024-11-02 12:36:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:54,048 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 855 transitions. [2024-11-02 12:36:54,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-02 12:36:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 855 transitions. [2024-11-02 12:36:54,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-02 12:36:54,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:54,055 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:54,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:36:54,056 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:54,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:54,082 INFO L85 PathProgramCache]: Analyzing trace with hash -428041075, now seen corresponding path program 1 times [2024-11-02 12:36:54,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:54,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670553635] [2024-11-02 12:36:54,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:54,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:54,644 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-02 12:36:54,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:54,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670553635] [2024-11-02 12:36:54,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670553635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:54,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:54,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:36:54,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602049561] [2024-11-02 12:36:54,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:54,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:54,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:54,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:54,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:54,649 INFO L87 Difference]: Start difference. First operand 615 states and 855 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 12:36:56,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:36:58,671 WARN L539 Checker$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 12:36:59,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:59,720 INFO L93 Difference]: Finished difference Result 1228 states and 1709 transitions. [2024-11-02 12:36:59,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:59,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2024-11-02 12:36:59,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:59,730 INFO L225 Difference]: With dead ends: 1228 [2024-11-02 12:36:59,730 INFO L226 Difference]: Without dead ends: 1021 [2024-11-02 12:36:59,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:36:59,734 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 277 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:59,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 678 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2024-11-02 12:36:59,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-11-02 12:36:59,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 817. [2024-11-02 12:36:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 549 states have (on average 1.336976320582878) internal successors, (734), 562 states have internal predecessors, (734), 199 states have call successors, (199), 69 states have call predecessors, (199), 68 states have return successors, (201), 197 states have call predecessors, (201), 197 states have call successors, (201) [2024-11-02 12:36:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1134 transitions. [2024-11-02 12:36:59,816 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1134 transitions. Word has length 105 [2024-11-02 12:36:59,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:59,817 INFO L471 AbstractCegarLoop]: Abstraction has 817 states and 1134 transitions. [2024-11-02 12:36:59,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-02 12:36:59,817 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1134 transitions. [2024-11-02 12:36:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-02 12:36:59,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:59,822 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:59,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:36:59,822 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:59,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:59,823 INFO L85 PathProgramCache]: Analyzing trace with hash 58486368, now seen corresponding path program 1 times [2024-11-02 12:36:59,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:59,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540481179] [2024-11-02 12:36:59,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:59,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-02 12:37:00,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540481179] [2024-11-02 12:37:00,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540481179] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065119224] [2024-11-02 12:37:00,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:00,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:00,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:00,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:00,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e97a09ff-f4b7-4445-90cb-72b03c805f81/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:37:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:01,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:37:01,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:01,487 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-02 12:37:01,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-02 12:37:01,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065119224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:01,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [576735311] [2024-11-02 12:37:01,805 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2024-11-02 12:37:01,805 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:01,810 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:01,816 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:01,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs