/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:00:18,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:00:18,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:00:18,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:00:18,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:00:18,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:00:18,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:00:18,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:00:18,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:00:18,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:00:18,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:00:18,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:00:18,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:00:18,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:00:19,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:00:19,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:00:19,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:00:19,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:00:19,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:00:19,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:00:19,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:00:19,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:00:19,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:00:19,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:00:19,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:00:19,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:00:19,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:00:19,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:00:19,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:00:19,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:00:19,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:00:19,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:00:19,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:00:19,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:00:19,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:00:19,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:00:19,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:00:19,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:00:19,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:00:19,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:00:19,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:00:19,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:00:19,102 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:00:19,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:00:19,103 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:00:19,103 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:00:19,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:00:19,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:00:19,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:00:19,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:00:19,106 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:00:19,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:00:19,107 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:00:19,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:00:19,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:00:19,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:00:19,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:00:19,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:00:19,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:00:19,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:00:19,110 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:00:19,110 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:00:19,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:00:19,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:00:19,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:00:19,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:00:19,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:00:19,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:00:19,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:00:19,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:00:19,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:00:19,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:00:19,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:00:19,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:00:19,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:00:19,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:00:19,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:00:19,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:00:19,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:00:19,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:00:19,625 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:00:19,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2022-10-15 21:00:19,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797bf6c55/5ca37d4c92144f03be7013a80ba29cb9/FLAGf9e3fa83b [2022-10-15 21:00:20,691 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:00:20,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2022-10-15 21:00:20,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797bf6c55/5ca37d4c92144f03be7013a80ba29cb9/FLAGf9e3fa83b [2022-10-15 21:00:20,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/797bf6c55/5ca37d4c92144f03be7013a80ba29cb9 [2022-10-15 21:00:20,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:00:20,822 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:00:20,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:00:20,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:00:20,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:00:20,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:00:20" (1/1) ... [2022-10-15 21:00:20,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ecade14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:20, skipping insertion in model container [2022-10-15 21:00:20,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:00:20" (1/1) ... [2022-10-15 21:00:20,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:00:20,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:00:22,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i[71148,71161] [2022-10-15 21:00:22,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:00:22,348 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:00:22,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i[71148,71161] [2022-10-15 21:00:22,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:00:22,755 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:00:22,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22 WrapperNode [2022-10-15 21:00:22,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:00:22,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:00:22,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:00:22,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:00:22,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:22,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:22,949 INFO L138 Inliner]: procedures = 102, calls = 421, calls flagged for inlining = 48, calls inlined = 43, statements flattened = 1143 [2022-10-15 21:00:22,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:00:22,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:00:22,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:00:22,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:00:22,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:22,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:22,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:22,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:23,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:23,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:23,073 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:23,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:23,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:00:23,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:00:23,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:00:23,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:00:23,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (1/1) ... [2022-10-15 21:00:23,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:00:23,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:00:23,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:00:23,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:00:23,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:00:23,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:00:23,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:00:23,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:00:23,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:00:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:00:23,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:00:23,245 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:00:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:00:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:00:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:00:23,246 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2022-10-15 21:00:23,246 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2022-10-15 21:00:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:00:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:00:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2022-10-15 21:00:23,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2022-10-15 21:00:23,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:00:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-10-15 21:00:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-10-15 21:00:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:00:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-15 21:00:23,248 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2022-10-15 21:00:23,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2022-10-15 21:00:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:00:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-15 21:00:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-15 21:00:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2022-10-15 21:00:23,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2022-10-15 21:00:23,249 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-10-15 21:00:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-10-15 21:00:23,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:00:23,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:00:23,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2022-10-15 21:00:23,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2022-10-15 21:00:23,251 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2022-10-15 21:00:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2022-10-15 21:00:23,251 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:00:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:00:23,251 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:00:23,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:00:23,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:00:23,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-15 21:00:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-15 21:00:23,252 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2022-10-15 21:00:23,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2022-10-15 21:00:23,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:00:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-15 21:00:23,253 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-15 21:00:23,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:00:23,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:00:23,680 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:00:23,684 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:00:25,540 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:00:25,554 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:00:25,555 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:00:25,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:00:25 BoogieIcfgContainer [2022-10-15 21:00:25,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:00:25,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:00:25,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:00:25,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:00:25,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:00:20" (1/3) ... [2022-10-15 21:00:25,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411f42f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:00:25, skipping insertion in model container [2022-10-15 21:00:25,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:00:22" (2/3) ... [2022-10-15 21:00:25,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411f42f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:00:25, skipping insertion in model container [2022-10-15 21:00:25,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:00:25" (3/3) ... [2022-10-15 21:00:25,576 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2022-10-15 21:00:25,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:00:25,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-10-15 21:00:25,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:00:25,692 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=LoopsAndPotentialCycles, 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;@46dc91dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:00:25,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-10-15 21:00:25,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 359 states, 250 states have (on average 1.42) internal successors, (355), 298 states have internal predecessors, (355), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-10-15 21:00:25,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-15 21:00:25,710 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:25,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-15 21:00:25,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_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 42 more)] === [2022-10-15 21:00:25,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash 176820, now seen corresponding path program 1 times [2022-10-15 21:00:25,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:25,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035977619] [2022-10-15 21:00:25,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:25,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:26,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:26,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035977619] [2022-10-15 21:00:26,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035977619] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:26,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:26,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-15 21:00:26,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896909640] [2022-10-15 21:00:26,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:26,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:00:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:00:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:26,348 INFO L87 Difference]: Start difference. First operand has 359 states, 250 states have (on average 1.42) internal successors, (355), 298 states have internal predecessors, (355), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:26,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:26,522 INFO L93 Difference]: Finished difference Result 680 states and 871 transitions. [2022-10-15 21:00:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:00:26,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-15 21:00:26,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:26,543 INFO L225 Difference]: With dead ends: 680 [2022-10-15 21:00:26,544 INFO L226 Difference]: Without dead ends: 342 [2022-10-15 21:00:26,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:26,558 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 1 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:26,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 842 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:26,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-10-15 21:00:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-10-15 21:00:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 243 states have (on average 1.3868312757201646) internal successors, (337), 282 states have internal predecessors, (337), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-10-15 21:00:26,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 427 transitions. [2022-10-15 21:00:26,696 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 427 transitions. Word has length 3 [2022-10-15 21:00:26,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:26,697 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 427 transitions. [2022-10-15 21:00:26,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 427 transitions. [2022-10-15 21:00:26,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 21:00:26,700 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:26,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 21:00:26,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:00:26,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_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 42 more)] === [2022-10-15 21:00:26,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:26,704 INFO L85 PathProgramCache]: Analyzing trace with hash 169929910, now seen corresponding path program 1 times [2022-10-15 21:00:26,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:26,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580128055] [2022-10-15 21:00:26,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:26,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:26,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:26,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580128055] [2022-10-15 21:00:26,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580128055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:26,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:26,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:00:26,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684607513] [2022-10-15 21:00:26,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:26,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:00:26,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:26,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:00:26,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:00:26,960 INFO L87 Difference]: Start difference. First operand 342 states and 427 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:27,212 INFO L93 Difference]: Finished difference Result 342 states and 427 transitions. [2022-10-15 21:00:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:00:27,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 21:00:27,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:27,226 INFO L225 Difference]: With dead ends: 342 [2022-10-15 21:00:27,229 INFO L226 Difference]: Without dead ends: 341 [2022-10-15 21:00:27,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:00:27,234 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 4 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:27,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1215 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:00:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-10-15 21:00:27,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2022-10-15 21:00:27,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 243 states have (on average 1.382716049382716) internal successors, (336), 281 states have internal predecessors, (336), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-10-15 21:00:27,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 426 transitions. [2022-10-15 21:00:27,279 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 426 transitions. Word has length 5 [2022-10-15 21:00:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:27,279 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 426 transitions. [2022-10-15 21:00:27,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:27,280 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 426 transitions. [2022-10-15 21:00:27,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 21:00:27,281 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:27,281 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 21:00:27,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:00:27,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_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 42 more)] === [2022-10-15 21:00:27,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:27,283 INFO L85 PathProgramCache]: Analyzing trace with hash 972860102, now seen corresponding path program 1 times [2022-10-15 21:00:27,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:27,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490148458] [2022-10-15 21:00:27,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:27,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:27,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:27,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490148458] [2022-10-15 21:00:27,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490148458] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:27,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:27,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:00:27,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209094981] [2022-10-15 21:00:27,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:27,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:00:27,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:27,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:00:27,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:00:27,519 INFO L87 Difference]: Start difference. First operand 341 states and 426 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:27,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:27,843 INFO L93 Difference]: Finished difference Result 341 states and 426 transitions. [2022-10-15 21:00:27,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:00:27,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-15 21:00:27,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:27,849 INFO L225 Difference]: With dead ends: 341 [2022-10-15 21:00:27,849 INFO L226 Difference]: Without dead ends: 335 [2022-10-15 21:00:27,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:00:27,852 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 409 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:27,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 707 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:00:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-10-15 21:00:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2022-10-15 21:00:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 243 states have (on average 1.3580246913580247) internal successors, (330), 275 states have internal predecessors, (330), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-10-15 21:00:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 420 transitions. [2022-10-15 21:00:27,901 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 420 transitions. Word has length 6 [2022-10-15 21:00:27,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:27,901 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 420 transitions. [2022-10-15 21:00:27,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:27,905 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 420 transitions. [2022-10-15 21:00:27,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 21:00:27,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:27,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:27,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:00:27,907 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 42 more)] === [2022-10-15 21:00:27,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:27,908 INFO L85 PathProgramCache]: Analyzing trace with hash 93892280, now seen corresponding path program 1 times [2022-10-15 21:00:27,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:27,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041186780] [2022-10-15 21:00:27,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:27,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:28,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:28,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041186780] [2022-10-15 21:00:28,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041186780] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:28,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:28,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:00:28,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677171272] [2022-10-15 21:00:28,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:28,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:00:28,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:28,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:00:28,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:28,066 INFO L87 Difference]: Start difference. First operand 335 states and 420 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:28,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:28,146 INFO L93 Difference]: Finished difference Result 335 states and 420 transitions. [2022-10-15 21:00:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:00:28,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 21:00:28,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:28,151 INFO L225 Difference]: With dead ends: 335 [2022-10-15 21:00:28,152 INFO L226 Difference]: Without dead ends: 334 [2022-10-15 21:00:28,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:28,154 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 4 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:28,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1207 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-10-15 21:00:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-10-15 21:00:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 243 states have (on average 1.353909465020576) internal successors, (329), 274 states have internal predecessors, (329), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-10-15 21:00:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 419 transitions. [2022-10-15 21:00:28,188 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 419 transitions. Word has length 7 [2022-10-15 21:00:28,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:28,189 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 419 transitions. [2022-10-15 21:00:28,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:28,189 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 419 transitions. [2022-10-15 21:00:28,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:00:28,190 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:28,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:28,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:00:28,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 42 more)] === [2022-10-15 21:00:28,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash 36174010, now seen corresponding path program 1 times [2022-10-15 21:00:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:28,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975849072] [2022-10-15 21:00:28,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:28,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:28,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:28,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975849072] [2022-10-15 21:00:28,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975849072] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:28,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:28,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:00:28,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135666588] [2022-10-15 21:00:28,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:28,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:00:28,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:28,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:00:28,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:00:28,513 INFO L87 Difference]: Start difference. First operand 334 states and 419 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:28,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:28,614 INFO L93 Difference]: Finished difference Result 334 states and 419 transitions. [2022-10-15 21:00:28,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:00:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 21:00:28,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:28,620 INFO L225 Difference]: With dead ends: 334 [2022-10-15 21:00:28,621 INFO L226 Difference]: Without dead ends: 333 [2022-10-15 21:00:28,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:00:28,634 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 7 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:28,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1204 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:00:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-10-15 21:00:28,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-10-15 21:00:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 243 states have (on average 1.3497942386831276) internal successors, (328), 273 states have internal predecessors, (328), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-10-15 21:00:28,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 418 transitions. [2022-10-15 21:00:28,675 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 418 transitions. Word has length 9 [2022-10-15 21:00:28,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:28,676 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 418 transitions. [2022-10-15 21:00:28,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:28,677 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 418 transitions. [2022-10-15 21:00:28,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 21:00:28,677 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:28,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:28,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:00:28,678 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 42 more)] === [2022-10-15 21:00:28,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:28,679 INFO L85 PathProgramCache]: Analyzing trace with hash 403491516, now seen corresponding path program 1 times [2022-10-15 21:00:28,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:28,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579268935] [2022-10-15 21:00:28,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:28,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:28,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:28,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579268935] [2022-10-15 21:00:28,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579268935] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:28,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:28,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:00:28,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573102707] [2022-10-15 21:00:28,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:28,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:00:28,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:28,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:00:28,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:00:28,935 INFO L87 Difference]: Start difference. First operand 333 states and 418 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:29,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:29,020 INFO L93 Difference]: Finished difference Result 333 states and 418 transitions. [2022-10-15 21:00:29,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:00:29,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 21:00:29,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:29,027 INFO L225 Difference]: With dead ends: 333 [2022-10-15 21:00:29,027 INFO L226 Difference]: Without dead ends: 332 [2022-10-15 21:00:29,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:00:29,033 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 10 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:29,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 804 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:00:29,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-10-15 21:00:29,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-10-15 21:00:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 243 states have (on average 1.345679012345679) internal successors, (327), 272 states have internal predecessors, (327), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-10-15 21:00:29,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 417 transitions. [2022-10-15 21:00:29,082 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 417 transitions. Word has length 11 [2022-10-15 21:00:29,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:29,084 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 417 transitions. [2022-10-15 21:00:29,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:29,085 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 417 transitions. [2022-10-15 21:00:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 21:00:29,086 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:29,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:29,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:00:29,086 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_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 42 more)] === [2022-10-15 21:00:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:29,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1208296638, now seen corresponding path program 1 times [2022-10-15 21:00:29,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:29,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675683151] [2022-10-15 21:00:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:29,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:00:29,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:29,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675683151] [2022-10-15 21:00:29,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675683151] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:29,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:29,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:00:29,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280975217] [2022-10-15 21:00:29,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:29,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:00:29,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:29,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:00:29,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:00:29,313 INFO L87 Difference]: Start difference. First operand 332 states and 417 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:29,401 INFO L93 Difference]: Finished difference Result 332 states and 417 transitions. [2022-10-15 21:00:29,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 21:00:29,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 21:00:29,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:29,405 INFO L225 Difference]: With dead ends: 332 [2022-10-15 21:00:29,406 INFO L226 Difference]: Without dead ends: 331 [2022-10-15 21:00:29,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:00:29,408 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 12 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:29,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1595 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:00:29,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-10-15 21:00:29,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-10-15 21:00:29,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 243 states have (on average 1.3415637860082306) internal successors, (326), 271 states have internal predecessors, (326), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-10-15 21:00:29,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 416 transitions. [2022-10-15 21:00:29,437 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 416 transitions. Word has length 13 [2022-10-15 21:00:29,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:29,438 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 416 transitions. [2022-10-15 21:00:29,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:00:29,438 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 416 transitions. [2022-10-15 21:00:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 21:00:29,442 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:29,442 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:00:29,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:00:29,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ibmpex_bmc_deleteErr2ASSERT_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 42 more)] === [2022-10-15 21:00:29,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:29,444 INFO L85 PathProgramCache]: Analyzing trace with hash -954076100, now seen corresponding path program 1 times [2022-10-15 21:00:29,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:29,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741138071] [2022-10-15 21:00:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:29,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-15 21:00:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:00:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:00:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 21:00:29,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:29,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741138071] [2022-10-15 21:00:29,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741138071] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:29,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:29,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:00:29,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806568539] [2022-10-15 21:00:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:29,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:00:29,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:29,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:00:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:29,624 INFO L87 Difference]: Start difference. First operand 331 states and 416 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:29,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:29,688 INFO L93 Difference]: Finished difference Result 651 states and 828 transitions. [2022-10-15 21:00:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:00:29,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2022-10-15 21:00:29,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:29,693 INFO L225 Difference]: With dead ends: 651 [2022-10-15 21:00:29,694 INFO L226 Difference]: Without dead ends: 340 [2022-10-15 21:00:29,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:29,697 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 7 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:29,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 819 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:29,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-10-15 21:00:29,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-10-15 21:00:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 250 states have (on average 1.336) internal successors, (334), 278 states have internal predecessors, (334), 47 states have call successors, (47), 16 states have call predecessors, (47), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-10-15 21:00:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 428 transitions. [2022-10-15 21:00:29,726 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 428 transitions. Word has length 51 [2022-10-15 21:00:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:29,728 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 428 transitions. [2022-10-15 21:00:29,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:29,729 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 428 transitions. [2022-10-15 21:00:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 21:00:29,732 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:29,732 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:00:29,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:00:29,733 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ibmpex_bmc_deleteErr2ASSERT_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 42 more)] === [2022-10-15 21:00:29,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:29,734 INFO L85 PathProgramCache]: Analyzing trace with hash 318419058, now seen corresponding path program 1 times [2022-10-15 21:00:29,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:29,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013548065] [2022-10-15 21:00:29,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:29,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:00:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:00:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:00:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:00:29,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:29,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013548065] [2022-10-15 21:00:30,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013548065] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:30,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:30,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:00:30,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350968468] [2022-10-15 21:00:30,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:30,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:00:30,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:30,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:00:30,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:30,007 INFO L87 Difference]: Start difference. First operand 340 states and 428 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:30,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:30,062 INFO L93 Difference]: Finished difference Result 379 states and 481 transitions. [2022-10-15 21:00:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:00:30,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 52 [2022-10-15 21:00:30,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:30,071 INFO L225 Difference]: With dead ends: 379 [2022-10-15 21:00:30,072 INFO L226 Difference]: Without dead ends: 377 [2022-10-15 21:00:30,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:30,076 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 13 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:30,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 825 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:30,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-10-15 21:00:30,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 363. [2022-10-15 21:00:30,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 269 states have (on average 1.3345724907063197) internal successors, (359), 297 states have internal predecessors, (359), 51 states have call successors, (51), 16 states have call predecessors, (51), 16 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-10-15 21:00:30,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 461 transitions. [2022-10-15 21:00:30,118 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 461 transitions. Word has length 52 [2022-10-15 21:00:30,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:30,119 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 461 transitions. [2022-10-15 21:00:30,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:30,120 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 461 transitions. [2022-10-15 21:00:30,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 21:00:30,131 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:30,131 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:30,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:00:30,132 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ibmpex_bmc_deleteErr0ASSERT_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 42 more)] === [2022-10-15 21:00:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:30,133 INFO L85 PathProgramCache]: Analyzing trace with hash -284872946, now seen corresponding path program 1 times [2022-10-15 21:00:30,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:30,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492068424] [2022-10-15 21:00:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:30,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-15 21:00:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:00:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:00:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 21:00:30,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:30,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492068424] [2022-10-15 21:00:30,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492068424] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:30,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:30,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:00:30,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496834740] [2022-10-15 21:00:30,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:30,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:00:30,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:30,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:00:30,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:30,368 INFO L87 Difference]: Start difference. First operand 363 states and 461 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:30,406 INFO L93 Difference]: Finished difference Result 363 states and 461 transitions. [2022-10-15 21:00:30,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:00:30,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2022-10-15 21:00:30,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:30,414 INFO L225 Difference]: With dead ends: 363 [2022-10-15 21:00:30,414 INFO L226 Difference]: Without dead ends: 362 [2022-10-15 21:00:30,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:00:30,416 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 5 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:30,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 809 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:30,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-10-15 21:00:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-10-15 21:00:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 269 states have (on average 1.3271375464684014) internal successors, (357), 296 states have internal predecessors, (357), 51 states have call successors, (51), 16 states have call predecessors, (51), 16 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-10-15 21:00:30,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 459 transitions. [2022-10-15 21:00:30,454 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 459 transitions. Word has length 58 [2022-10-15 21:00:30,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:30,457 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 459 transitions. [2022-10-15 21:00:30,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:30,458 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 459 transitions. [2022-10-15 21:00:30,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-15 21:00:30,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:30,462 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:30,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 21:00:30,463 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ibmpex_bmc_deleteErr1ASSERT_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 42 more)] === [2022-10-15 21:00:30,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:30,464 INFO L85 PathProgramCache]: Analyzing trace with hash -241126630, now seen corresponding path program 1 times [2022-10-15 21:00:30,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:30,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909686916] [2022-10-15 21:00:30,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:30,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-15 21:00:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:00:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:00:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 21:00:30,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:30,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909686916] [2022-10-15 21:00:30,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909686916] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:00:30,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474944322] [2022-10-15 21:00:30,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:30,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:00:30,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:00:30,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:00:30,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:00:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:31,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:00:31,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:00:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 21:00:31,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:00:31,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474944322] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:31,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:00:31,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:00:31,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744557745] [2022-10-15 21:00:31,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:31,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:00:31,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:31,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:00:31,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:31,148 INFO L87 Difference]: Start difference. First operand 362 states and 459 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:31,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:31,241 INFO L93 Difference]: Finished difference Result 374 states and 477 transitions. [2022-10-15 21:00:31,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:00:31,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2022-10-15 21:00:31,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:31,248 INFO L225 Difference]: With dead ends: 374 [2022-10-15 21:00:31,248 INFO L226 Difference]: Without dead ends: 373 [2022-10-15 21:00:31,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:31,250 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 35 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:31,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 843 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:00:31,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-10-15 21:00:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 345. [2022-10-15 21:00:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 257 states have (on average 1.3268482490272373) internal successors, (341), 283 states have internal predecessors, (341), 47 states have call successors, (47), 16 states have call predecessors, (47), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-10-15 21:00:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 435 transitions. [2022-10-15 21:00:31,280 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 435 transitions. Word has length 59 [2022-10-15 21:00:31,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:31,281 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 435 transitions. [2022-10-15 21:00:31,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:31,282 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 435 transitions. [2022-10-15 21:00:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 21:00:31,283 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:31,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:31,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:00:31,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 21:00:31,500 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ibmpex_send_messageErr0ASSERT_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 42 more)] === [2022-10-15 21:00:31,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:31,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1513693777, now seen corresponding path program 1 times [2022-10-15 21:00:31,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:31,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788524634] [2022-10-15 21:00:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:31,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:00:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:00:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:32,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:00:32,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:32,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788524634] [2022-10-15 21:00:32,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788524634] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:32,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:32,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-15 21:00:32,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407389538] [2022-10-15 21:00:32,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:32,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 21:00:32,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:32,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 21:00:32,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:00:32,979 INFO L87 Difference]: Start difference. First operand 345 states and 435 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:00:34,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:34,655 INFO L93 Difference]: Finished difference Result 757 states and 974 transitions. [2022-10-15 21:00:34,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 21:00:34,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2022-10-15 21:00:34,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:34,661 INFO L225 Difference]: With dead ends: 757 [2022-10-15 21:00:34,661 INFO L226 Difference]: Without dead ends: 432 [2022-10-15 21:00:34,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-10-15 21:00:34,664 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 126 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:34,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 3529 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 21:00:34,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-10-15 21:00:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 356. [2022-10-15 21:00:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 265 states have (on average 1.3169811320754716) internal successors, (349), 291 states have internal predecessors, (349), 47 states have call successors, (47), 16 states have call predecessors, (47), 19 states have return successors, (53), 50 states have call predecessors, (53), 47 states have call successors, (53) [2022-10-15 21:00:34,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 449 transitions. [2022-10-15 21:00:34,698 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 449 transitions. Word has length 58 [2022-10-15 21:00:34,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:34,699 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 449 transitions. [2022-10-15 21:00:34,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:00:34,699 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 449 transitions. [2022-10-15 21:00:34,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 21:00:34,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:34,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:34,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 21:00:34,702 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ibmpex_send_messageErr0ASSERT_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 42 more)] === [2022-10-15 21:00:34,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:34,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1692670031, now seen corresponding path program 1 times [2022-10-15 21:00:34,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:34,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703912078] [2022-10-15 21:00:34,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:34,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:00:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:36,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:00:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:36,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:36,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:00:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:00:36,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:36,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703912078] [2022-10-15 21:00:36,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703912078] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:36,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:36,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:00:36,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492575496] [2022-10-15 21:00:36,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:36,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:00:36,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:36,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:00:36,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:00:36,369 INFO L87 Difference]: Start difference. First operand 356 states and 449 transitions. Second operand has 8 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:00:38,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:38,706 INFO L93 Difference]: Finished difference Result 453 states and 588 transitions. [2022-10-15 21:00:38,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:00:38,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 65 [2022-10-15 21:00:38,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:38,711 INFO L225 Difference]: With dead ends: 453 [2022-10-15 21:00:38,711 INFO L226 Difference]: Without dead ends: 451 [2022-10-15 21:00:38,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-15 21:00:38,713 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 146 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:38,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 2198 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-15 21:00:38,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-10-15 21:00:38,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 364. [2022-10-15 21:00:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 272 states have (on average 1.3125) internal successors, (357), 298 states have internal predecessors, (357), 47 states have call successors, (47), 17 states have call predecessors, (47), 20 states have return successors, (54), 50 states have call predecessors, (54), 47 states have call successors, (54) [2022-10-15 21:00:38,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 458 transitions. [2022-10-15 21:00:38,752 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 458 transitions. Word has length 65 [2022-10-15 21:00:38,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:38,752 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 458 transitions. [2022-10-15 21:00:38,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:00:38,753 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 458 transitions. [2022-10-15 21:00:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 21:00:38,755 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:38,755 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:38,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 21:00:38,756 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ibmpex_bmc_deleteErr2ASSERT_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 42 more)] === [2022-10-15 21:00:38,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:38,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1464883529, now seen corresponding path program 1 times [2022-10-15 21:00:38,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:38,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765827186] [2022-10-15 21:00:38,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:38,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:38,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-15 21:00:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:38,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:00:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:00:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:00:38,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:38,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765827186] [2022-10-15 21:00:38,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765827186] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:00:38,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897361475] [2022-10-15 21:00:38,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:38,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:00:38,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:00:38,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:00:38,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:00:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:39,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:00:39,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:00:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:00:39,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:00:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:00:39,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897361475] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:00:39,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:00:39,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-15 21:00:39,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509046095] [2022-10-15 21:00:39,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:00:39,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:00:39,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:39,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:00:39,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:00:39,224 INFO L87 Difference]: Start difference. First operand 364 states and 458 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:39,318 INFO L93 Difference]: Finished difference Result 744 states and 949 transitions. [2022-10-15 21:00:39,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:00:39,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 67 [2022-10-15 21:00:39,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:39,323 INFO L225 Difference]: With dead ends: 744 [2022-10-15 21:00:39,323 INFO L226 Difference]: Without dead ends: 400 [2022-10-15 21:00:39,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:00:39,326 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 24 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:39,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1627 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:39,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-10-15 21:00:39,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2022-10-15 21:00:39,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 300 states have (on average 1.2966666666666666) internal successors, (389), 326 states have internal predecessors, (389), 55 states have call successors, (55), 17 states have call predecessors, (55), 20 states have return successors, (62), 58 states have call predecessors, (62), 55 states have call successors, (62) [2022-10-15 21:00:39,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 506 transitions. [2022-10-15 21:00:39,365 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 506 transitions. Word has length 67 [2022-10-15 21:00:39,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:39,366 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 506 transitions. [2022-10-15 21:00:39,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 506 transitions. [2022-10-15 21:00:39,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-15 21:00:39,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:39,368 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 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] [2022-10-15 21:00:39,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:00:39,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 21:00:39,584 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ibmpex_bmc_deleteErr2ASSERT_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 42 more)] === [2022-10-15 21:00:39,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:39,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1431536329, now seen corresponding path program 2 times [2022-10-15 21:00:39,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:39,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339485609] [2022-10-15 21:00:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:39,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:39,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-15 21:00:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 21:00:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:39,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:00:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-15 21:00:39,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:39,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339485609] [2022-10-15 21:00:39,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339485609] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:00:39,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110966476] [2022-10-15 21:00:39,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:00:39,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:00:39,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:00:39,799 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:00:39,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:00:40,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 21:00:40,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:00:40,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:00:40,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:00:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-15 21:00:40,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:00:40,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110966476] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:40,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:00:40,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-10-15 21:00:40,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093194877] [2022-10-15 21:00:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:40,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:00:40,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:40,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:00:40,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:40,104 INFO L87 Difference]: Start difference. First operand 400 states and 506 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:40,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:40,167 INFO L93 Difference]: Finished difference Result 412 states and 524 transitions. [2022-10-15 21:00:40,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:00:40,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 87 [2022-10-15 21:00:40,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:40,173 INFO L225 Difference]: With dead ends: 412 [2022-10-15 21:00:40,174 INFO L226 Difference]: Without dead ends: 411 [2022-10-15 21:00:40,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:40,178 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 13 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:40,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 804 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:00:40,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-10-15 21:00:40,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 399. [2022-10-15 21:00:40,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 300 states have (on average 1.2933333333333332) internal successors, (388), 325 states have internal predecessors, (388), 55 states have call successors, (55), 17 states have call predecessors, (55), 20 states have return successors, (62), 58 states have call predecessors, (62), 55 states have call successors, (62) [2022-10-15 21:00:40,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 505 transitions. [2022-10-15 21:00:40,296 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 505 transitions. Word has length 87 [2022-10-15 21:00:40,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:40,297 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 505 transitions. [2022-10-15 21:00:40,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 505 transitions. [2022-10-15 21:00:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 21:00:40,310 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:40,311 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 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] [2022-10-15 21:00:40,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:00:40,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:00:40,526 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ibmpex_bmc_deleteErr3ASSERT_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 42 more)] === [2022-10-15 21:00:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:40,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1159135852, now seen corresponding path program 1 times [2022-10-15 21:00:40,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:40,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95435707] [2022-10-15 21:00:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:40,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:40,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:00:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:00:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:40,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:00:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:40,741 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-15 21:00:40,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:40,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95435707] [2022-10-15 21:00:40,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95435707] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:00:40,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406982956] [2022-10-15 21:00:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:40,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:00:40,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:00:40,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:00:40,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:00:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:00:41,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:00:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-15 21:00:41,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:00:41,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406982956] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:41,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:00:41,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 21:00:41,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100454334] [2022-10-15 21:00:41,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:41,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:00:41,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:41,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:00:41,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:41,145 INFO L87 Difference]: Start difference. First operand 399 states and 505 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:41,262 INFO L93 Difference]: Finished difference Result 411 states and 523 transitions. [2022-10-15 21:00:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:00:41,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 84 [2022-10-15 21:00:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:41,268 INFO L225 Difference]: With dead ends: 411 [2022-10-15 21:00:41,268 INFO L226 Difference]: Without dead ends: 404 [2022-10-15 21:00:41,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:41,271 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 20 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:41,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1227 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:00:41,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-10-15 21:00:41,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 359. [2022-10-15 21:00:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 269 states have (on average 1.3011152416356877) internal successors, (350), 293 states have internal predecessors, (350), 47 states have call successors, (47), 17 states have call predecessors, (47), 20 states have return successors, (54), 50 states have call predecessors, (54), 47 states have call successors, (54) [2022-10-15 21:00:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 451 transitions. [2022-10-15 21:00:41,319 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 451 transitions. Word has length 84 [2022-10-15 21:00:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:41,320 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 451 transitions. [2022-10-15 21:00:41,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:00:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 451 transitions. [2022-10-15 21:00:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-15 21:00:41,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:41,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:41,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:00:41,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-15 21:00:41,537 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ibmpex_send_messageErr0ASSERT_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 42 more)] === [2022-10-15 21:00:41,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:41,538 INFO L85 PathProgramCache]: Analyzing trace with hash 288788642, now seen corresponding path program 1 times [2022-10-15 21:00:41,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:41,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697889568] [2022-10-15 21:00:41,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:41,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:00:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:00:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:00:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 21:00:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:00:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-15 21:00:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-15 21:00:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-15 21:00:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:00:41,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:41,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697889568] [2022-10-15 21:00:41,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697889568] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:41,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:41,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:00:41,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280855131] [2022-10-15 21:00:41,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:41,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:00:41,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:41,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:00:41,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:00:41,893 INFO L87 Difference]: Start difference. First operand 359 states and 451 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:00:43,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:43,378 INFO L93 Difference]: Finished difference Result 829 states and 1072 transitions. [2022-10-15 21:00:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:00:43,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-10-15 21:00:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:43,384 INFO L225 Difference]: With dead ends: 829 [2022-10-15 21:00:43,384 INFO L226 Difference]: Without dead ends: 490 [2022-10-15 21:00:43,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:00:43,388 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 323 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:43,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1507 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:00:43,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-10-15 21:00:43,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 363. [2022-10-15 21:00:43,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 272 states have (on average 1.2977941176470589) internal successors, (353), 297 states have internal predecessors, (353), 47 states have call successors, (47), 17 states have call predecessors, (47), 21 states have return successors, (56), 50 states have call predecessors, (56), 47 states have call successors, (56) [2022-10-15 21:00:43,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 456 transitions. [2022-10-15 21:00:43,441 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 456 transitions. Word has length 103 [2022-10-15 21:00:43,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:43,441 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 456 transitions. [2022-10-15 21:00:43,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-15 21:00:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 456 transitions. [2022-10-15 21:00:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-15 21:00:43,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:43,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:43,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 21:00:43,445 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ibmpex_send_messageErr0ASSERT_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 42 more)] === [2022-10-15 21:00:43,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:43,446 INFO L85 PathProgramCache]: Analyzing trace with hash -81191787, now seen corresponding path program 1 times [2022-10-15 21:00:43,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:43,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265941055] [2022-10-15 21:00:43,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:43,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:00:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:00:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:00:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 21:00:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:00:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 21:00:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:00:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-15 21:00:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 21:00:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:00:43,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:43,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265941055] [2022-10-15 21:00:43,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265941055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:00:43,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:00:43,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:00:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974090296] [2022-10-15 21:00:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:00:43,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:00:43,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:00:43,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:00:43,801 INFO L87 Difference]: Start difference. First operand 363 states and 456 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-15 21:00:45,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:45,175 INFO L93 Difference]: Finished difference Result 745 states and 946 transitions. [2022-10-15 21:00:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:00:45,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2022-10-15 21:00:45,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:45,182 INFO L225 Difference]: With dead ends: 745 [2022-10-15 21:00:45,182 INFO L226 Difference]: Without dead ends: 402 [2022-10-15 21:00:45,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:00:45,187 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 180 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:45,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1032 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-15 21:00:45,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-10-15 21:00:45,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 364. [2022-10-15 21:00:45,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 273 states have (on average 1.2967032967032968) internal successors, (354), 298 states have internal predecessors, (354), 47 states have call successors, (47), 17 states have call predecessors, (47), 21 states have return successors, (56), 50 states have call predecessors, (56), 47 states have call successors, (56) [2022-10-15 21:00:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 457 transitions. [2022-10-15 21:00:45,243 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 457 transitions. Word has length 113 [2022-10-15 21:00:45,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:45,244 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 457 transitions. [2022-10-15 21:00:45,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-15 21:00:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 457 transitions. [2022-10-15 21:00:45,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-15 21:00:45,248 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:45,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:45,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 21:00:45,249 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ibmpex_send_messageErr0ASSERT_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 42 more)] === [2022-10-15 21:00:45,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:45,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1452999085, now seen corresponding path program 1 times [2022-10-15 21:00:45,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:45,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038282425] [2022-10-15 21:00:45,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:45,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:00:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:00:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:00:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:00:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:00:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 21:00:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-15 21:00:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 21:00:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:00:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-15 21:00:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-15 21:00:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 21:00:50,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:00:50,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038282425] [2022-10-15 21:00:50,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038282425] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:00:50,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757434516] [2022-10-15 21:00:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:50,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:00:50,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:00:50,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:00:50,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:00:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:00:50,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 82 conjunts are in the unsatisfiable core [2022-10-15 21:00:50,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:00:51,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-10-15 21:00:51,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-15 21:00:51,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 58 [2022-10-15 21:00:51,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-10-15 21:00:51,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-15 21:00:52,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-10-15 21:00:52,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-15 21:00:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:00:52,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:00:52,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757434516] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:00:52,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 21:00:52,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 26 [2022-10-15 21:00:52,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508948675] [2022-10-15 21:00:52,529 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 21:00:52,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-15 21:00:52,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:00:52,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-15 21:00:52,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=956, Unknown=0, NotChecked=0, Total=1056 [2022-10-15 21:00:52,533 INFO L87 Difference]: Start difference. First operand 364 states and 457 transitions. Second operand has 27 states, 24 states have (on average 5.791666666666667) internal successors, (139), 20 states have internal predecessors, (139), 8 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22) [2022-10-15 21:00:59,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:00:59,341 INFO L93 Difference]: Finished difference Result 596 states and 785 transitions. [2022-10-15 21:00:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-15 21:00:59,342 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 5.791666666666667) internal successors, (139), 20 states have internal predecessors, (139), 8 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22) Word has length 113 [2022-10-15 21:00:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:00:59,349 INFO L225 Difference]: With dead ends: 596 [2022-10-15 21:00:59,349 INFO L226 Difference]: Without dead ends: 594 [2022-10-15 21:00:59,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 161 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=275, Invalid=2587, Unknown=0, NotChecked=0, Total=2862 [2022-10-15 21:00:59,353 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 759 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 3590 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 5874 SdHoareTripleChecker+Invalid, 4292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 3590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 425 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:00:59,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 5874 Invalid, 4292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [277 Valid, 3590 Invalid, 0 Unknown, 425 Unchecked, 5.8s Time] [2022-10-15 21:00:59,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-10-15 21:00:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 412. [2022-10-15 21:00:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 309 states have (on average 1.2815533980582525) internal successors, (396), 334 states have internal predecessors, (396), 53 states have call successors, (53), 23 states have call predecessors, (53), 27 states have return successors, (64), 56 states have call predecessors, (64), 53 states have call successors, (64) [2022-10-15 21:00:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 513 transitions. [2022-10-15 21:00:59,422 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 513 transitions. Word has length 113 [2022-10-15 21:00:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:00:59,423 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 513 transitions. [2022-10-15 21:00:59,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 5.791666666666667) internal successors, (139), 20 states have internal predecessors, (139), 8 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 9 states have call predecessors, (22), 6 states have call successors, (22) [2022-10-15 21:00:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 513 transitions. [2022-10-15 21:00:59,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-15 21:00:59,426 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:00:59,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:00:59,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:00:59,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:00:59,641 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ibmpex_send_messageErr0ASSERT_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 42 more)] === [2022-10-15 21:00:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:00:59,642 INFO L85 PathProgramCache]: Analyzing trace with hash 783916498, now seen corresponding path program 1 times [2022-10-15 21:00:59,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:00:59,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726371363] [2022-10-15 21:00:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:00:59,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:00:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat