./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-s3c-hwmon-ko--130_7a--af3071a-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-s3c-hwmon-ko--130_7a--af3071a-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4083bfcd7db6f77d1df429f19c85907b2c08abb35764175570b1e2ec14e31561 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:13:36,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:13:36,927 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:13:36,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:13:36,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:13:36,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:13:36,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:13:36,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:13:36,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:13:37,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:13:37,000 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:13:37,001 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:13:37,001 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:13:37,003 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:13:37,004 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:13:37,004 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:13:37,005 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:13:37,005 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:13:37,006 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:13:37,006 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:13:37,007 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:13:37,007 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:13:37,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:13:37,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:13:37,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:13:37,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:13:37,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:13:37,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:13:37,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:13:37,012 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:13:37,014 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:13:37,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:13:37,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:13:37,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:13:37,015 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:13:37,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:37,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:13:37,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:13:37,016 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:13:37,016 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:13:37,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:13:37,017 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:13:37,017 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:13:37,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:13:37,018 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_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4083bfcd7db6f77d1df429f19c85907b2c08abb35764175570b1e2ec14e31561 [2023-11-12 00:13:37,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:13:37,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:13:37,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:13:37,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:13:37,391 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:13:37,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-s3c-hwmon-ko--130_7a--af3071a-1.i [2023-11-12 00:13:40,629 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:13:41,090 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:13:41,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-s3c-hwmon-ko--130_7a--af3071a-1.i [2023-11-12 00:13:41,115 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/data/b468b16b5/eda7198c42ea4234ae7e048d4d475a4d/FLAGf658e6089 [2023-11-12 00:13:41,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/data/b468b16b5/eda7198c42ea4234ae7e048d4d475a4d [2023-11-12 00:13:41,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:13:41,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:13:41,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:41,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:13:41,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:13:41,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:41,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4293b3b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41, skipping insertion in model container [2023-11-12 00:13:41,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:41,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:13:41,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:41,710 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:13:41,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:41,927 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:13:41,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41 WrapperNode [2023-11-12 00:13:41,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:41,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:41,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:13:41,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:13:41,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:41,975 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,034 INFO L138 Inliner]: procedures = 75, calls = 162, calls flagged for inlining = 36, calls inlined = 31, statements flattened = 531 [2023-11-12 00:13:42,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:42,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:13:42,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:13:42,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:13:42,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:13:42,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:13:42,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:13:42,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:13:42,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (1/1) ... [2023-11-12 00:13:42,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:42,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:42,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:13:42,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:13:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hwmon_remove_raw [2023-11-12 00:13:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hwmon_remove_raw [2023-11-12 00:13:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:13:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:13:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:13:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:13:42,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:13:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 00:13:42,256 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 00:13:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:13:42,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:13:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:13:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:13:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hwmon_remove_attr [2023-11-12 00:13:42,259 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hwmon_remove_attr [2023-11-12 00:13:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:13:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:13:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-12 00:13:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-12 00:13:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2023-11-12 00:13:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2023-11-12 00:13:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2023-11-12 00:13:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2023-11-12 00:13:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:13:42,262 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:13:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:13:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_adc_release [2023-11-12 00:13:42,263 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_adc_release [2023-11-12 00:13:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:13:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-12 00:13:42,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-12 00:13:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:13:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-12 00:13:42,265 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-12 00:13:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:13:42,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:13:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:13:42,266 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:13:42,549 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:13:42,552 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:13:43,185 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:13:43,417 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:13:43,417 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:13:43,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:43 BoogieIcfgContainer [2023-11-12 00:13:43,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:13:43,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:13:43,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:13:43,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:13:43,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:41" (1/3) ... [2023-11-12 00:13:43,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bf6423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:43, skipping insertion in model container [2023-11-12 00:13:43,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:41" (2/3) ... [2023-11-12 00:13:43,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bf6423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:43, skipping insertion in model container [2023-11-12 00:13:43,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:43" (3/3) ... [2023-11-12 00:13:43,431 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-s3c-hwmon-ko--130_7a--af3071a-1.i [2023-11-12 00:13:43,451 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:13:43,451 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-12 00:13:43,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:13:43,525 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@e526dfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:13:43,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-12 00:13:43,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 90 states have (on average 1.4111111111111112) internal successors, (127), 103 states have internal predecessors, (127), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-12 00:13:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:13:43,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:43,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:13:43,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-12 00:13:43,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:43,545 INFO L85 PathProgramCache]: Analyzing trace with hash 409501553, now seen corresponding path program 1 times [2023-11-12 00:13:43,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:43,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913874602] [2023-11-12 00:13:43,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:43,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:13:44,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:44,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913874602] [2023-11-12 00:13:44,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913874602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:44,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:13:44,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:13:44,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198470560] [2023-11-12 00:13:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:44,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:13:44,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:44,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:13:44,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:13:44,110 INFO L87 Difference]: Start difference. First operand has 151 states, 90 states have (on average 1.4111111111111112) internal successors, (127), 103 states have internal predecessors, (127), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:13:44,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:44,274 INFO L93 Difference]: Finished difference Result 302 states and 399 transitions. [2023-11-12 00:13:44,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:13:44,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-12 00:13:44,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:44,289 INFO L225 Difference]: With dead ends: 302 [2023-11-12 00:13:44,289 INFO L226 Difference]: Without dead ends: 151 [2023-11-12 00:13:44,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:13:44,299 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 72 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:44,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 233 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:13:44,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-12 00:13:44,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-12 00:13:44,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 104 states have internal predecessors, (128), 34 states have call successors, (34), 13 states have call predecessors, (34), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-12 00:13:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 196 transitions. [2023-11-12 00:13:44,366 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 196 transitions. Word has length 18 [2023-11-12 00:13:44,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:44,368 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 196 transitions. [2023-11-12 00:13:44,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:13:44,369 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 196 transitions. [2023-11-12 00:13:44,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 00:13:44,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:44,374 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-12 00:13:44,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:13:44,375 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-12 00:13:44,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:44,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1651728459, now seen corresponding path program 1 times [2023-11-12 00:13:44,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:44,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995256942] [2023-11-12 00:13:44,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:44,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:13:44,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:44,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995256942] [2023-11-12 00:13:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995256942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:44,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:13:44,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:13:44,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077306273] [2023-11-12 00:13:44,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:44,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:13:44,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:44,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:13:44,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:13:44,667 INFO L87 Difference]: Start difference. First operand 151 states and 196 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 00:13:44,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:44,899 INFO L93 Difference]: Finished difference Result 326 states and 435 transitions. [2023-11-12 00:13:44,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:13:44,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 52 [2023-11-12 00:13:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:44,907 INFO L225 Difference]: With dead ends: 326 [2023-11-12 00:13:44,908 INFO L226 Difference]: Without dead ends: 179 [2023-11-12 00:13:44,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:13:44,916 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 25 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:44,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 294 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:13:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-12 00:13:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-12 00:13:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 115 states have (on average 1.3652173913043477) internal successors, (157), 125 states have internal predecessors, (157), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-12 00:13:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2023-11-12 00:13:44,956 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 52 [2023-11-12 00:13:44,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:44,957 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2023-11-12 00:13:44,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 00:13:44,958 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2023-11-12 00:13:44,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 00:13:44,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:44,961 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 00:13:44,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:13:44,962 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-12 00:13:44,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:44,962 INFO L85 PathProgramCache]: Analyzing trace with hash -236452364, now seen corresponding path program 1 times [2023-11-12 00:13:44,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:44,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419517918] [2023-11-12 00:13:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:44,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:13:45,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:45,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419517918] [2023-11-12 00:13:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419517918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:45,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:13:45,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:13:45,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014662976] [2023-11-12 00:13:45,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:45,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:13:45,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:45,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:13:45,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:13:45,130 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:13:45,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:45,274 INFO L93 Difference]: Finished difference Result 356 states and 475 transitions. [2023-11-12 00:13:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:13:45,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-11-12 00:13:45,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:45,278 INFO L225 Difference]: With dead ends: 356 [2023-11-12 00:13:45,278 INFO L226 Difference]: Without dead ends: 177 [2023-11-12 00:13:45,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:13:45,281 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:45,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 469 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:13:45,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-12 00:13:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-12 00:13:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 114 states have (on average 1.3596491228070176) internal successors, (155), 124 states have internal predecessors, (155), 40 states have call successors, (40), 13 states have call predecessors, (40), 13 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-12 00:13:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 235 transitions. [2023-11-12 00:13:45,302 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 235 transitions. Word has length 54 [2023-11-12 00:13:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:45,303 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 235 transitions. [2023-11-12 00:13:45,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-12 00:13:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 235 transitions. [2023-11-12 00:13:45,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 00:13:45,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:45,307 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-12 00:13:45,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:13:45,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-12 00:13:45,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:45,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1029168114, now seen corresponding path program 1 times [2023-11-12 00:13:45,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:45,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499521419] [2023-11-12 00:13:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:45,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:13:45,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:45,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499521419] [2023-11-12 00:13:45,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499521419] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:13:45,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102504421] [2023-11-12 00:13:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:45,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:45,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:45,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:13:45,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:13:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:45,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:13:45,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:13:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:13:45,837 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:13:45,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102504421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:45,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:13:45,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-12 00:13:45,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607067826] [2023-11-12 00:13:45,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:45,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:13:45,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:45,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:13:45,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:13:45,840 INFO L87 Difference]: Start difference. First operand 177 states and 235 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 00:13:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:46,042 INFO L93 Difference]: Finished difference Result 349 states and 468 transitions. [2023-11-12 00:13:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:13:46,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 56 [2023-11-12 00:13:46,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:46,046 INFO L225 Difference]: With dead ends: 349 [2023-11-12 00:13:46,047 INFO L226 Difference]: Without dead ends: 176 [2023-11-12 00:13:46,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:13:46,049 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 53 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:46,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 424 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:13:46,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-12 00:13:46,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 175. [2023-11-12 00:13:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 115 states have (on average 1.3304347826086957) internal successors, (153), 122 states have internal predecessors, (153), 40 states have call successors, (40), 13 states have call predecessors, (40), 13 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-12 00:13:46,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2023-11-12 00:13:46,070 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 56 [2023-11-12 00:13:46,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:46,071 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2023-11-12 00:13:46,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 00:13:46,071 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2023-11-12 00:13:46,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-12 00:13:46,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:46,075 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-12 00:13:46,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:13:46,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:46,283 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-12 00:13:46,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:46,284 INFO L85 PathProgramCache]: Analyzing trace with hash 891769991, now seen corresponding path program 1 times [2023-11-12 00:13:46,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:46,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129457385] [2023-11-12 00:13:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:46,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:13:46,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:46,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129457385] [2023-11-12 00:13:46,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129457385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:46,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:13:46,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:13:46,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416959842] [2023-11-12 00:13:46,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:46,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:13:46,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:46,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:13:46,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:13:46,507 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 00:13:46,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:46,648 INFO L93 Difference]: Finished difference Result 346 states and 465 transitions. [2023-11-12 00:13:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:13:46,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-11-12 00:13:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:46,654 INFO L225 Difference]: With dead ends: 346 [2023-11-12 00:13:46,654 INFO L226 Difference]: Without dead ends: 344 [2023-11-12 00:13:46,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:13:46,656 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 148 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:46,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 314 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:13:46,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-12 00:13:46,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 339. [2023-11-12 00:13:46,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 227 states have (on average 1.3259911894273129) internal successors, (301), 235 states have internal predecessors, (301), 79 states have call successors, (79), 26 states have call predecessors, (79), 26 states have return successors, (83), 79 states have call predecessors, (83), 79 states have call successors, (83) [2023-11-12 00:13:46,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 463 transitions. [2023-11-12 00:13:46,692 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 463 transitions. Word has length 57 [2023-11-12 00:13:46,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:46,693 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 463 transitions. [2023-11-12 00:13:46,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 00:13:46,694 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 463 transitions. [2023-11-12 00:13:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-12 00:13:46,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:46,697 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-12 00:13:46,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:13:46,697 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-12 00:13:46,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1839440170, now seen corresponding path program 1 times [2023-11-12 00:13:46,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:46,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856149082] [2023-11-12 00:13:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:46,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:13:46,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856149082] [2023-11-12 00:13:46,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856149082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:13:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557578983] [2023-11-12 00:13:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:46,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:46,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:46,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:13:46,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:13:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:47,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:13:47,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:13:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:13:47,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:13:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 00:13:47,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557578983] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:13:47,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1761994935] [2023-11-12 00:13:47,235 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2023-11-12 00:13:47,236 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:13:47,240 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:13:47,245 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:13:47,246 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:13:53,325 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_handler_precall with input of size 233 for LOIs [2023-11-12 00:13:53,434 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 288 for LOIs [2023-11-12 00:13:53,943 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:14:09,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1761994935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:09,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:14:09,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [3, 3, 3] total 21 [2023-11-12 00:14:09,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828667129] [2023-11-12 00:14:09,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:09,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-12 00:14:09,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:09,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-12 00:14:09,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-11-12 00:14:09,182 INFO L87 Difference]: Start difference. First operand 339 states and 463 transitions. Second operand has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:14:17,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:17,448 INFO L93 Difference]: Finished difference Result 766 states and 1034 transitions. [2023-11-12 00:14:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-12 00:14:17,452 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 57 [2023-11-12 00:14:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:17,456 INFO L225 Difference]: With dead ends: 766 [2023-11-12 00:14:17,456 INFO L226 Difference]: Without dead ends: 431 [2023-11-12 00:14:17,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2023-11-12 00:14:17,459 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 100 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:17,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 918 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-12 00:14:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-12 00:14:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 420. [2023-11-12 00:14:17,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 282 states have (on average 1.3120567375886525) internal successors, (370), 292 states have internal predecessors, (370), 94 states have call successors, (94), 37 states have call predecessors, (94), 37 states have return successors, (99), 92 states have call predecessors, (99), 94 states have call successors, (99) [2023-11-12 00:14:17,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 563 transitions. [2023-11-12 00:14:17,555 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 563 transitions. Word has length 57 [2023-11-12 00:14:17,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:17,558 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 563 transitions. [2023-11-12 00:14:17,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 13 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:14:17,558 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 563 transitions. [2023-11-12 00:14:17,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-12 00:14:17,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:17,566 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-12 00:14:17,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:14:17,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:14:17,779 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-12 00:14:17,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:17,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1110449345, now seen corresponding path program 1 times [2023-11-12 00:14:17,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:17,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042110687] [2023-11-12 00:14:17,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:17,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:17,913 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 00:14:17,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:17,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042110687] [2023-11-12 00:14:17,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042110687] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:14:17,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607765194] [2023-11-12 00:14:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:17,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:14:17,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:14:17,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:14:17,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385e04f-459b-4643-b810-64da9e5811b6/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 00:14:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:18,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:14:18,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:14:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 00:14:18,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:14:18,230 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 00:14:18,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607765194] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:14:18,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [945949137] [2023-11-12 00:14:18,234 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2023-11-12 00:14:18,234 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:14:18,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:14:18,235 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:14:18,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs