./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-af3071a-1-130_7a-drivers--hwmon--s3c-hwmon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/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_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-af3071a-1-130_7a-drivers--hwmon--s3c-hwmon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/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_b1fb60e8-4791-450d-bc00-82e68a0a936a/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 88f19b088f98626e870666f9633d9e7e34156d2b7ba315c9b1bc3979a22f8d34 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:44,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:45,009 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 01:02:45,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:45,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:45,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:45,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:45,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:45,043 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:45,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:45,044 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:45,045 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:45,045 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:45,046 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:02:45,046 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:45,047 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:45,048 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:02:45,048 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:02:45,048 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:45,049 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:02:45,049 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:02:45,050 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:02:45,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:45,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:02:45,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:45,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:45,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:02:45,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:45,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:02:45,054 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 01:02:45,054 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:02:45,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:02:45,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:45,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:45,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:45,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:45,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:45,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:45,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:02:45,057 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:02:45,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:02:45,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:02:45,057 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:45,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:45,058 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_b1fb60e8-4791-450d-bc00-82e68a0a936a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88f19b088f98626e870666f9633d9e7e34156d2b7ba315c9b1bc3979a22f8d34 [2023-11-12 01:02:45,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:45,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:45,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:45,433 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:45,433 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:45,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-af3071a-1-130_7a-drivers--hwmon--s3c-hwmon.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-12 01:02:48,616 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:49,070 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:49,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-af3071a-1-130_7a-drivers--hwmon--s3c-hwmon.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-12 01:02:49,102 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/data/5fd63b730/60e541a81e6b470f9af0957bc6ec07a2/FLAG3c79173d9 [2023-11-12 01:02:49,116 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/data/5fd63b730/60e541a81e6b470f9af0957bc6ec07a2 [2023-11-12 01:02:49,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:49,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:49,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:49,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:49,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:49,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:49" (1/1) ... [2023-11-12 01:02:49,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df762c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:49, skipping insertion in model container [2023-11-12 01:02:49,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:49" (1/1) ... [2023-11-12 01:02:49,195 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:49,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:49,845 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:49,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:50,012 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:50,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50 WrapperNode [2023-11-12 01:02:50,013 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:50,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:50,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:50,014 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:50,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,125 INFO L138 Inliner]: procedures = 83, calls = 179, calls flagged for inlining = 34, calls inlined = 27, statements flattened = 559 [2023-11-12 01:02:50,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:50,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:50,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:50,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:50,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:50,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:50,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:50,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:50,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (1/1) ... [2023-11-12 01:02:50,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:50,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:50,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:50,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hwmon_remove_raw [2023-11-12 01:02:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hwmon_remove_raw [2023-11-12 01:02:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hwmon_probe [2023-11-12 01:02:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hwmon_probe [2023-11-12 01:02:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 01:02:50,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 01:02:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:02:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:02:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 01:02:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 01:02:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:02:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 01:02:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 01:02:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:02:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 01:02:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 01:02:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 01:02:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 01:02:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 01:02:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 01:02:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hwmon_remove_attr [2023-11-12 01:02:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hwmon_remove_attr [2023-11-12 01:02:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:02:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:02:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-12 01:02:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-12 01:02:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2023-11-12 01:02:50,333 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2023-11-12 01:02:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 01:02:50,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 01:02:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:02:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_adc_release [2023-11-12 01:02:50,335 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_adc_release [2023-11-12 01:02:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:02:50,335 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:02:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:02:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure s3c_hwmon_remove [2023-11-12 01:02:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure s3c_hwmon_remove [2023-11-12 01:02:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:02:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-12 01:02:50,337 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-12 01:02:50,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:50,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file [2023-11-12 01:02:50,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file [2023-11-12 01:02:50,338 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 01:02:50,339 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 01:02:50,571 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:50,574 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:51,255 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 01:02:51,582 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:51,759 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:51,760 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 01:02:51,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:51 BoogieIcfgContainer [2023-11-12 01:02:51,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:51,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:51,769 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:51,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:51,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:49" (1/3) ... [2023-11-12 01:02:51,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9259e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:51, skipping insertion in model container [2023-11-12 01:02:51,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:50" (2/3) ... [2023-11-12 01:02:51,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9259e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:51, skipping insertion in model container [2023-11-12 01:02:51,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:51" (3/3) ... [2023-11-12 01:02:51,777 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-af3071a-1-130_7a-drivers--hwmon--s3c-hwmon.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-12 01:02:51,799 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:51,799 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-12 01:02:51,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:51,888 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;@15e0f533, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:51,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-12 01:02:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 127 states have (on average 1.4488188976377954) internal successors, (184), 148 states have internal predecessors, (184), 48 states have call successors, (48), 18 states have call predecessors, (48), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-12 01:02:51,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 01:02:51,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:51,908 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 01:02:51,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [s3c_hwmon_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 01:02:51,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:51,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1062624768, now seen corresponding path program 1 times [2023-11-12 01:02:51,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:51,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842631520] [2023-11-12 01:02:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:51,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:52,360 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 01:02:52,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:52,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842631520] [2023-11-12 01:02:52,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842631520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:52,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:52,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:02:52,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850593244] [2023-11-12 01:02:52,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:52,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:52,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:52,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:52,447 INFO L87 Difference]: Start difference. First operand has 209 states, 127 states have (on average 1.4488188976377954) internal successors, (184), 148 states have internal predecessors, (184), 48 states have call successors, (48), 18 states have call predecessors, (48), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 01:02:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:52,728 INFO L93 Difference]: Finished difference Result 437 states and 582 transitions. [2023-11-12 01:02:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:52,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-12 01:02:52,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:52,749 INFO L225 Difference]: With dead ends: 437 [2023-11-12 01:02:52,749 INFO L226 Difference]: Without dead ends: 217 [2023-11-12 01:02:52,754 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 01:02:52,758 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 27 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:52,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 477 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 01:02:52,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-12 01:02:52,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2023-11-12 01:02:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 140 states have (on average 1.4142857142857144) internal successors, (198), 156 states have internal predecessors, (198), 44 states have call successors, (44), 17 states have call predecessors, (44), 17 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-12 01:02:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 286 transitions. [2023-11-12 01:02:52,845 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 286 transitions. Word has length 18 [2023-11-12 01:02:52,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:52,845 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 286 transitions. [2023-11-12 01:02:52,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 01:02:52,846 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 286 transitions. [2023-11-12 01:02:52,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-12 01:02:52,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:52,849 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 01:02:52,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:02:52,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [s3c_hwmon_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 01:02:52,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1222946738, now seen corresponding path program 1 times [2023-11-12 01:02:52,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:52,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376898714] [2023-11-12 01:02:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 01:02:53,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:53,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376898714] [2023-11-12 01:02:53,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376898714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:53,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:53,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:53,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960675198] [2023-11-12 01:02:53,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:53,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:53,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:53,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:53,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:53,087 INFO L87 Difference]: Start difference. First operand 217 states and 286 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 01:02:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:53,301 INFO L93 Difference]: Finished difference Result 433 states and 571 transitions. [2023-11-12 01:02:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:53,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-11-12 01:02:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:53,308 INFO L225 Difference]: With dead ends: 433 [2023-11-12 01:02:53,309 INFO L226 Difference]: Without dead ends: 427 [2023-11-12 01:02:53,310 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 01:02:53,312 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 234 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:53,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 494 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:53,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-12 01:02:53,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 417. [2023-11-12 01:02:53,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 279 states have (on average 1.3942652329749103) internal successors, (389), 296 states have internal predecessors, (389), 88 states have call successors, (88), 34 states have call predecessors, (88), 34 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-12 01:02:53,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 565 transitions. [2023-11-12 01:02:53,388 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 565 transitions. Word has length 37 [2023-11-12 01:02:53,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:53,392 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 565 transitions. [2023-11-12 01:02:53,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-12 01:02:53,394 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 565 transitions. [2023-11-12 01:02:53,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 01:02:53,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:53,405 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 01:02:53,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:02:53,406 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting s3c_hwmon_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [s3c_hwmon_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 01:02:53,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:53,416 INFO L85 PathProgramCache]: Analyzing trace with hash -280540681, now seen corresponding path program 1 times [2023-11-12 01:02:53,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:53,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56937724] [2023-11-12 01:02:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:53,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 01:02:53,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:53,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56937724] [2023-11-12 01:02:53,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56937724] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:02:53,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567464301] [2023-11-12 01:02:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:53,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:53,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:53,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:53,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:02:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:53,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 01:02:53,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:53,910 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 01:02:53,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:53,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567464301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:53,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 01:02:53,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 01:02:53,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991647033] [2023-11-12 01:02:53,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:53,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:53,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:53,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:53,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:53,914 INFO L87 Difference]: Start difference. First operand 417 states and 565 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 01:02:54,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:54,045 INFO L93 Difference]: Finished difference Result 987 states and 1332 transitions. [2023-11-12 01:02:54,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:54,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-11-12 01:02:54,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:54,051 INFO L225 Difference]: With dead ends: 987 [2023-11-12 01:02:54,051 INFO L226 Difference]: Without dead ends: 571 [2023-11-12 01:02:54,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:54,056 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 194 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:54,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 476 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:54,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-12 01:02:54,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 559. [2023-11-12 01:02:54,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 380 states have (on average 1.3894736842105264) internal successors, (528), 398 states have internal predecessors, (528), 116 states have call successors, (116), 47 states have call predecessors, (116), 47 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-11-12 01:02:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 760 transitions. [2023-11-12 01:02:54,127 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 760 transitions. Word has length 54 [2023-11-12 01:02:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:54,128 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 760 transitions. [2023-11-12 01:02:54,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-12 01:02:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 760 transitions. [2023-11-12 01:02:54,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 01:02:54,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:54,132 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-12 01:02:54,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 01:02:54,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:54,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [s3c_hwmon_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 01:02:54,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1955774760, now seen corresponding path program 1 times [2023-11-12 01:02:54,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:54,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358307800] [2023-11-12 01:02:54,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:54,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-12 01:02:54,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:54,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358307800] [2023-11-12 01:02:54,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358307800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:54,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:54,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:02:54,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556483847] [2023-11-12 01:02:54,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:54,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:54,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:54,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:54,474 INFO L87 Difference]: Start difference. First operand 559 states and 760 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 01:02:54,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:54,602 INFO L93 Difference]: Finished difference Result 1017 states and 1369 transitions. [2023-11-12 01:02:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:54,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2023-11-12 01:02:54,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:54,607 INFO L225 Difference]: With dead ends: 1017 [2023-11-12 01:02:54,608 INFO L226 Difference]: Without dead ends: 631 [2023-11-12 01:02:54,609 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 01:02:54,612 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 86 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:54,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 490 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:54,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-11-12 01:02:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 629. [2023-11-12 01:02:54,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 427 states have (on average 1.379391100702576) internal successors, (589), 445 states have internal predecessors, (589), 128 states have call successors, (128), 58 states have call predecessors, (128), 58 states have return successors, (128), 128 states have call predecessors, (128), 128 states have call successors, (128) [2023-11-12 01:02:54,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 845 transitions. [2023-11-12 01:02:54,676 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 845 transitions. Word has length 55 [2023-11-12 01:02:54,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:54,679 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 845 transitions. [2023-11-12 01:02:54,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-12 01:02:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 845 transitions. [2023-11-12 01:02:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-12 01:02:54,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:54,684 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 01:02:54,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 01:02:54,684 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting s3c_hwmon_probeErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [s3c_hwmon_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 01:02:54,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:54,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1169450363, now seen corresponding path program 1 times [2023-11-12 01:02:54,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:54,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124903564] [2023-11-12 01:02:54,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:54,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 01:02:54,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:54,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124903564] [2023-11-12 01:02:54,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124903564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:54,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:54,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:54,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222788823] [2023-11-12 01:02:54,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:54,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:54,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:54,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:54,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:54,842 INFO L87 Difference]: Start difference. First operand 629 states and 845 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 01:02:54,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:54,990 INFO L93 Difference]: Finished difference Result 1341 states and 1836 transitions. [2023-11-12 01:02:54,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:54,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 65 [2023-11-12 01:02:54,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:55,006 INFO L225 Difference]: With dead ends: 1341 [2023-11-12 01:02:55,006 INFO L226 Difference]: Without dead ends: 713 [2023-11-12 01:02:55,008 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 01:02:55,009 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 25 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:55,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 448 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:55,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-11-12 01:02:55,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 713. [2023-11-12 01:02:55,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 490 states have (on average 1.379591836734694) internal successors, (676), 508 states have internal predecessors, (676), 149 states have call successors, (149), 58 states have call predecessors, (149), 58 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2023-11-12 01:02:55,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 974 transitions. [2023-11-12 01:02:55,062 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 974 transitions. Word has length 65 [2023-11-12 01:02:55,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:55,063 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 974 transitions. [2023-11-12 01:02:55,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 01:02:55,063 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 974 transitions. [2023-11-12 01:02:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-12 01:02:55,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:55,067 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:02:55,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 01:02:55,067 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting s3c_hwmon_probeErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [s3c_hwmon_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 01:02:55,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:55,069 INFO L85 PathProgramCache]: Analyzing trace with hash -501034341, now seen corresponding path program 1 times [2023-11-12 01:02:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:55,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847048586] [2023-11-12 01:02:55,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:55,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:55,297 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 01:02:55,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:55,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847048586] [2023-11-12 01:02:55,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847048586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:02:55,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773070091] [2023-11-12 01:02:55,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:55,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:55,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:55,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:55,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 01:02:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:55,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 01:02:55,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 01:02:55,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773070091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:55,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 01:02:55,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-12 01:02:55,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741387841] [2023-11-12 01:02:55,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:55,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 01:02:55,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:02:55,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 01:02:55,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:02:55,577 INFO L87 Difference]: Start difference. First operand 713 states and 974 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 01:02:55,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:55,737 INFO L93 Difference]: Finished difference Result 1431 states and 1962 transitions. [2023-11-12 01:02:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 01:02:55,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2023-11-12 01:02:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:55,745 INFO L225 Difference]: With dead ends: 1431 [2023-11-12 01:02:55,745 INFO L226 Difference]: Without dead ends: 719 [2023-11-12 01:02:55,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 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 01:02:55,748 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 59 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:55,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 475 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 01:02:55,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-11-12 01:02:55,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 713. [2023-11-12 01:02:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 493 states have (on average 1.359026369168357) internal successors, (670), 508 states have internal predecessors, (670), 149 states have call successors, (149), 58 states have call predecessors, (149), 58 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2023-11-12 01:02:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 968 transitions. [2023-11-12 01:02:55,797 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 968 transitions. Word has length 69 [2023-11-12 01:02:55,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:55,797 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 968 transitions. [2023-11-12 01:02:55,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-12 01:02:55,798 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 968 transitions. [2023-11-12 01:02:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-12 01:02:55,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:55,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-12 01:02:55,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 01:02:56,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 01:02:56,006 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting s3c_hwmon_probeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [s3c_hwmon_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 01:02:56,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:56,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1647804812, now seen corresponding path program 1 times [2023-11-12 01:02:56,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:56,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944576241] [2023-11-12 01:02:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:56,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:56,162 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 01:02:56,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:02:56,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944576241] [2023-11-12 01:02:56,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944576241] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:02:56,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368515167] [2023-11-12 01:02:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:56,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:56,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:56,164 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:56,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 01:02:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:56,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 01:02:56,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 01:02:56,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:02:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-12 01:02:56,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368515167] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:02:56,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [621622731] [2023-11-12 01:02:56,603 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2023-11-12 01:02:56,603 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 01:02:56,608 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 01:02:56,614 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 01:02:56,614 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 01:03:05,755 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 348 for LOIs [2023-11-12 01:03:05,766 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 256 for LOIs [2023-11-12 01:03:06,043 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 01:03:26,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [621622731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:03:26,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-12 01:03:26,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [3, 3, 3] total 24 [2023-11-12 01:03:26,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524102631] [2023-11-12 01:03:26,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:03:26,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-12 01:03:26,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:03:26,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-12 01:03:26,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2023-11-12 01:03:26,722 INFO L87 Difference]: Start difference. First operand 713 states and 968 transitions. Second operand has 19 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 01:03:35,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:03:35,006 INFO L93 Difference]: Finished difference Result 1451 states and 1971 transitions. [2023-11-12 01:03:35,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-12 01:03:35,007 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2023-11-12 01:03:35,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:03:35,012 INFO L225 Difference]: With dead ends: 1451 [2023-11-12 01:03:35,013 INFO L226 Difference]: Without dead ends: 734 [2023-11-12 01:03:35,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2023-11-12 01:03:35,016 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 13 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-12 01:03:35,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1598 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-12 01:03:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-11-12 01:03:35,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 731. [2023-11-12 01:03:35,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 510 states have (on average 1.3549019607843138) internal successors, (691), 525 states have internal predecessors, (691), 150 states have call successors, (150), 59 states have call predecessors, (150), 58 states have return successors, (150), 149 states have call predecessors, (150), 150 states have call successors, (150) [2023-11-12 01:03:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 991 transitions. [2023-11-12 01:03:35,058 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 991 transitions. Word has length 70 [2023-11-12 01:03:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:03:35,059 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 991 transitions. [2023-11-12 01:03:35,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 01:03:35,059 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 991 transitions. [2023-11-12 01:03:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-12 01:03:35,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:03:35,062 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 01:03:35,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 01:03:35,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:35,272 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting s3c_hwmon_probeErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [s3c_hwmon_probeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, s3c_hwmon_probeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-12 01:03:35,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:03:35,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1614459895, now seen corresponding path program 1 times [2023-11-12 01:03:35,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:03:35,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967485192] [2023-11-12 01:03:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:35,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:03:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:35,418 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-12 01:03:35,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:03:35,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967485192] [2023-11-12 01:03:35,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967485192] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 01:03:35,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333833230] [2023-11-12 01:03:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:03:35,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:03:35,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:03:35,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:03:35,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1fb60e8-4791-450d-bc00-82e68a0a936a/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 01:03:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:03:35,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 01:03:35,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:03:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-12 01:03:35,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 01:03:35,777 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-12 01:03:35,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333833230] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 01:03:35,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1472897165] [2023-11-12 01:03:35,784 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2023-11-12 01:03:35,784 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 01:03:35,785 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 01:03:35,785 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 01:03:35,786 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs