/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 [2022-10-16 12:28:03,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:28:03,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:28:03,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:28:03,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:28:03,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:28:03,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:28:03,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:28:03,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:28:03,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:28:03,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:28:03,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:28:03,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:28:03,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:28:03,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:28:03,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:28:03,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:28:03,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:28:03,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:28:03,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:28:03,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:28:03,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:28:03,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:28:03,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:28:03,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:28:03,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:28:03,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:28:03,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:28:03,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:28:03,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:28:03,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:28:03,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:28:03,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:28:03,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:28:03,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:28:03,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:28:03,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:28:03,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:28:03,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:28:03,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:28:03,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:28:03,527 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 [2022-10-16 12:28:03,559 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:28:03,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:28:03,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:28:03,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:28:03,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:28:03,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:28:03,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:28:03,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:28:03,564 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:28:03,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:28:03,565 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:28:03,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:28:03,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:28:03,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:28:03,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:28:03,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:28:03,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:28:03,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:28:03,567 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:28:03,567 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:28:03,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:28:03,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:28:03,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:28:03,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:28:03,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:28:03,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:28:03,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:28:03,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:28:03,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:28:03,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:28:03,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:28:03,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:28:03,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:28:03,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:28:03,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:28:04,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:28:04,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:28:04,029 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:28:04,030 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:28:04,031 INFO L432 ainManager$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 [2022-10-16 12:28:04,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb0f9da3/19873cc096d8439eafab1cb544f37eab/FLAG5f977fe00 [2022-10-16 12:28:05,032 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:28:05,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2022-10-16 12:28:05,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb0f9da3/19873cc096d8439eafab1cb544f37eab/FLAG5f977fe00 [2022-10-16 12:28:05,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb0f9da3/19873cc096d8439eafab1cb544f37eab [2022-10-16 12:28:05,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:28:05,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:28:05,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:28:05,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:28:05,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:28:05,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:28:05" (1/1) ... [2022-10-16 12:28:05,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1a62c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:05, skipping insertion in model container [2022-10-16 12:28:05,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:28:05" (1/1) ... [2022-10-16 12:28:05,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:28:05,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:28:06,167 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] [2022-10-16 12:28:06,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:28:06,260 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:28:06,477 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] [2022-10-16 12:28:06,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:28:06,548 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:28:06,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06 WrapperNode [2022-10-16 12:28:06,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:28:06,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:28:06,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:28:06,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:28:06,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,741 INFO L138 Inliner]: procedures = 102, calls = 421, calls flagged for inlining = 48, calls inlined = 43, statements flattened = 1143 [2022-10-16 12:28:06,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:28:06,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:28:06,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:28:06,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:28:06,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,868 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:28:06,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:28:06,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:28:06,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:28:06,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (1/1) ... [2022-10-16 12:28:06,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:28:06,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:28:06,929 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) [2022-10-16 12:28:06,945 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 [2022-10-16 12:28:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:28:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:28:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:28:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:28:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:28:06,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:28:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:28:06,994 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:28:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:28:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:28:06,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:28:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2022-10-16 12:28:06,995 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2022-10-16 12:28:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:28:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:28:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2022-10-16 12:28:06,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2022-10-16 12:28:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:28:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-10-16 12:28:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-10-16 12:28:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:28:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 12:28:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2022-10-16 12:28:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2022-10-16 12:28:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:28:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-16 12:28:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-16 12:28:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2022-10-16 12:28:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2022-10-16 12:28:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-10-16 12:28:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-10-16 12:28:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:28:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:28:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2022-10-16 12:28:06,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2022-10-16 12:28:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2022-10-16 12:28:06,998 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2022-10-16 12:28:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 12:28:06,998 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 12:28:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 12:28:06,999 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 12:28:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:28:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-16 12:28:06,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-16 12:28:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2022-10-16 12:28:06,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2022-10-16 12:28:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:28:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-16 12:28:07,000 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-16 12:28:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:28:07,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:28:07,333 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:28:07,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:28:08,874 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:28:08,894 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:28:08,895 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:28:08,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:28:08 BoogieIcfgContainer [2022-10-16 12:28:08,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:28:08,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:28:08,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:28:08,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:28:08,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:28:05" (1/3) ... [2022-10-16 12:28:08,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1266b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:28:08, skipping insertion in model container [2022-10-16 12:28:08,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:28:06" (2/3) ... [2022-10-16 12:28:08,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1266b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:28:08, skipping insertion in model container [2022-10-16 12:28:08,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:28:08" (3/3) ... [2022-10-16 12:28:08,913 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2022-10-16 12:28:08,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:28:08,935 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-10-16 12:28:09,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:28:09,037 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;@664ddabb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:28:09,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-10-16 12:28:09,044 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) [2022-10-16 12:28:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-16 12:28:09,052 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:09,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-16 12:28:09,053 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)] === [2022-10-16 12:28:09,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:09,059 INFO L85 PathProgramCache]: Analyzing trace with hash 176820, now seen corresponding path program 1 times [2022-10-16 12:28:09,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:09,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311352166] [2022-10-16 12:28:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:09,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:28:09,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:09,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311352166] [2022-10-16 12:28:09,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311352166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:09,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:09,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-16 12:28:09,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315299000] [2022-10-16 12:28:09,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:09,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:28:09,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:09,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:28:09,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:28:09,562 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) [2022-10-16 12:28:09,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:09,737 INFO L93 Difference]: Finished difference Result 680 states and 871 transitions. [2022-10-16 12:28:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:28:09,743 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 [2022-10-16 12:28:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:09,765 INFO L225 Difference]: With dead ends: 680 [2022-10-16 12:28:09,765 INFO L226 Difference]: Without dead ends: 342 [2022-10-16 12:28:09,777 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 [2022-10-16 12:28:09,787 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 [2022-10-16 12:28:09,790 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] [2022-10-16 12:28:09,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-10-16 12:28:09,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-10-16 12:28:09,901 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) [2022-10-16 12:28:09,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 427 transitions. [2022-10-16 12:28:09,912 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 427 transitions. Word has length 3 [2022-10-16 12:28:09,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:09,913 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 427 transitions. [2022-10-16 12:28:09,914 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) [2022-10-16 12:28:09,915 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 427 transitions. [2022-10-16 12:28:09,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 12:28:09,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:09,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 12:28:09,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:28:09,918 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)] === [2022-10-16 12:28:09,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:09,920 INFO L85 PathProgramCache]: Analyzing trace with hash 169929910, now seen corresponding path program 1 times [2022-10-16 12:28:09,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:09,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278847877] [2022-10-16 12:28:09,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:09,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:10,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:28:10,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:10,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278847877] [2022-10-16 12:28:10,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278847877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:10,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:10,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:28:10,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772547430] [2022-10-16 12:28:10,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:10,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:28:10,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:10,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:28:10,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:28:10,100 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) [2022-10-16 12:28:10,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:10,209 INFO L93 Difference]: Finished difference Result 342 states and 427 transitions. [2022-10-16 12:28:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:28:10,209 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 [2022-10-16 12:28:10,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:10,213 INFO L225 Difference]: With dead ends: 342 [2022-10-16 12:28:10,213 INFO L226 Difference]: Without dead ends: 341 [2022-10-16 12:28:10,213 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 [2022-10-16 12:28:10,215 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 [2022-10-16 12:28:10,216 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] [2022-10-16 12:28:10,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-10-16 12:28:10,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2022-10-16 12:28:10,232 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) [2022-10-16 12:28:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 426 transitions. [2022-10-16 12:28:10,235 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 426 transitions. Word has length 5 [2022-10-16 12:28:10,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:10,235 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 426 transitions. [2022-10-16 12:28:10,235 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) [2022-10-16 12:28:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 426 transitions. [2022-10-16 12:28:10,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 12:28:10,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:10,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 12:28:10,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:28:10,237 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)] === [2022-10-16 12:28:10,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:10,238 INFO L85 PathProgramCache]: Analyzing trace with hash 972860102, now seen corresponding path program 1 times [2022-10-16 12:28:10,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:10,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903991795] [2022-10-16 12:28:10,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:10,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:10,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:28:10,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:10,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903991795] [2022-10-16 12:28:10,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903991795] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:10,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:10,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:28:10,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563798578] [2022-10-16 12:28:10,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:10,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:28:10,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:10,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:28:10,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:28:10,345 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) [2022-10-16 12:28:10,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:10,568 INFO L93 Difference]: Finished difference Result 341 states and 426 transitions. [2022-10-16 12:28:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:28:10,570 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 [2022-10-16 12:28:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:10,577 INFO L225 Difference]: With dead ends: 341 [2022-10-16 12:28:10,577 INFO L226 Difference]: Without dead ends: 335 [2022-10-16 12:28:10,579 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 [2022-10-16 12:28:10,586 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 409 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:10,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 707 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:28:10,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-10-16 12:28:10,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2022-10-16 12:28:10,618 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) [2022-10-16 12:28:10,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 420 transitions. [2022-10-16 12:28:10,621 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 420 transitions. Word has length 6 [2022-10-16 12:28:10,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:10,622 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 420 transitions. [2022-10-16 12:28:10,622 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) [2022-10-16 12:28:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 420 transitions. [2022-10-16 12:28:10,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 12:28:10,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:10,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:28:10,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:28:10,624 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)] === [2022-10-16 12:28:10,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:10,625 INFO L85 PathProgramCache]: Analyzing trace with hash 93892280, now seen corresponding path program 1 times [2022-10-16 12:28:10,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:10,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607409364] [2022-10-16 12:28:10,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:10,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:10,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:28:10,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:10,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607409364] [2022-10-16 12:28:10,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607409364] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:10,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:10,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:28:10,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419020801] [2022-10-16 12:28:10,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:10,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:28:10,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:10,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:28:10,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:28:10,817 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) [2022-10-16 12:28:10,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:10,906 INFO L93 Difference]: Finished difference Result 335 states and 420 transitions. [2022-10-16 12:28:10,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:28:10,906 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 [2022-10-16 12:28:10,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:10,910 INFO L225 Difference]: With dead ends: 335 [2022-10-16 12:28:10,910 INFO L226 Difference]: Without dead ends: 334 [2022-10-16 12:28:10,911 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 [2022-10-16 12:28:10,922 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, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:10,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1207 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:28:10,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-10-16 12:28:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-10-16 12:28:10,944 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) [2022-10-16 12:28:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 419 transitions. [2022-10-16 12:28:10,948 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 419 transitions. Word has length 7 [2022-10-16 12:28:10,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:10,949 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 419 transitions. [2022-10-16 12:28:10,949 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) [2022-10-16 12:28:10,949 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 419 transitions. [2022-10-16 12:28:10,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 12:28:10,950 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:10,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:28:10,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:28:10,955 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)] === [2022-10-16 12:28:10,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:10,958 INFO L85 PathProgramCache]: Analyzing trace with hash 36174010, now seen corresponding path program 1 times [2022-10-16 12:28:10,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:10,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100934172] [2022-10-16 12:28:10,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:10,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:28:11,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:11,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100934172] [2022-10-16 12:28:11,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100934172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:11,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:11,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:28:11,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624501191] [2022-10-16 12:28:11,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:11,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:28:11,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:11,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:28:11,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:28:11,137 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) [2022-10-16 12:28:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:11,204 INFO L93 Difference]: Finished difference Result 334 states and 419 transitions. [2022-10-16 12:28:11,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:28:11,205 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 [2022-10-16 12:28:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:11,209 INFO L225 Difference]: With dead ends: 334 [2022-10-16 12:28:11,209 INFO L226 Difference]: Without dead ends: 333 [2022-10-16 12:28:11,210 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 [2022-10-16 12:28:11,210 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, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:11,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1204 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:28:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-10-16 12:28:11,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-10-16 12:28:11,228 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) [2022-10-16 12:28:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 418 transitions. [2022-10-16 12:28:11,231 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 418 transitions. Word has length 9 [2022-10-16 12:28:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:11,232 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 418 transitions. [2022-10-16 12:28:11,232 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) [2022-10-16 12:28:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 418 transitions. [2022-10-16 12:28:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 12:28:11,233 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:11,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:28:11,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:28:11,233 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)] === [2022-10-16 12:28:11,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:11,234 INFO L85 PathProgramCache]: Analyzing trace with hash 403491516, now seen corresponding path program 1 times [2022-10-16 12:28:11,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:11,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890707539] [2022-10-16 12:28:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:11,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:28:11,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:11,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890707539] [2022-10-16 12:28:11,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890707539] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:11,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:11,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:28:11,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129079397] [2022-10-16 12:28:11,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:11,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:28:11,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:11,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:28:11,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:28:11,432 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) [2022-10-16 12:28:11,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:11,494 INFO L93 Difference]: Finished difference Result 333 states and 418 transitions. [2022-10-16 12:28:11,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:28:11,494 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 [2022-10-16 12:28:11,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:11,498 INFO L225 Difference]: With dead ends: 333 [2022-10-16 12:28:11,498 INFO L226 Difference]: Without dead ends: 332 [2022-10-16 12:28:11,498 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 [2022-10-16 12:28:11,502 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, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:11,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 804 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:28:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-10-16 12:28:11,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-10-16 12:28:11,546 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) [2022-10-16 12:28:11,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 417 transitions. [2022-10-16 12:28:11,549 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 417 transitions. Word has length 11 [2022-10-16 12:28:11,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:11,549 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 417 transitions. [2022-10-16 12:28:11,549 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) [2022-10-16 12:28:11,549 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 417 transitions. [2022-10-16 12:28:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 12:28:11,550 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:11,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:28:11,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:28:11,551 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)] === [2022-10-16 12:28:11,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1208296638, now seen corresponding path program 1 times [2022-10-16 12:28:11,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:11,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583627998] [2022-10-16 12:28:11,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:11,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:28:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583627998] [2022-10-16 12:28:11,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583627998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:11,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:11,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:28:11,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980849715] [2022-10-16 12:28:11,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:11,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:28:11,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:11,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:28:11,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:28:11,726 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) [2022-10-16 12:28:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:11,801 INFO L93 Difference]: Finished difference Result 332 states and 417 transitions. [2022-10-16 12:28:11,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:28:11,801 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 [2022-10-16 12:28:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:11,804 INFO L225 Difference]: With dead ends: 332 [2022-10-16 12:28:11,804 INFO L226 Difference]: Without dead ends: 331 [2022-10-16 12:28:11,805 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 [2022-10-16 12:28:11,806 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, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:11,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1595 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:28:11,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-10-16 12:28:11,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-10-16 12:28:11,820 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) [2022-10-16 12:28:11,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 416 transitions. [2022-10-16 12:28:11,822 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 416 transitions. Word has length 13 [2022-10-16 12:28:11,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:11,823 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 416 transitions. [2022-10-16 12:28:11,823 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) [2022-10-16 12:28:11,823 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 416 transitions. [2022-10-16 12:28:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 12:28:11,826 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:11,826 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] [2022-10-16 12:28:11,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:28:11,827 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)] === [2022-10-16 12:28:11,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash -954076100, now seen corresponding path program 1 times [2022-10-16 12:28:11,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:11,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181844682] [2022-10-16 12:28:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:11,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:28:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:28:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 12:28:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 12:28:11,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:11,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181844682] [2022-10-16 12:28:11,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181844682] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:11,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:11,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:28:11,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200170602] [2022-10-16 12:28:11,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:11,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:28:11,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:11,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:28:11,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:28:11,956 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) [2022-10-16 12:28:11,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:12,000 INFO L93 Difference]: Finished difference Result 651 states and 828 transitions. [2022-10-16 12:28:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:28:12,000 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 [2022-10-16 12:28:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:12,003 INFO L225 Difference]: With dead ends: 651 [2022-10-16 12:28:12,004 INFO L226 Difference]: Without dead ends: 340 [2022-10-16 12:28:12,005 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 [2022-10-16 12:28:12,006 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 [2022-10-16 12:28:12,006 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] [2022-10-16 12:28:12,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-10-16 12:28:12,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-10-16 12:28:12,020 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) [2022-10-16 12:28:12,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 428 transitions. [2022-10-16 12:28:12,022 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 428 transitions. Word has length 51 [2022-10-16 12:28:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:12,024 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 428 transitions. [2022-10-16 12:28:12,024 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) [2022-10-16 12:28:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 428 transitions. [2022-10-16 12:28:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 12:28:12,027 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:12,027 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] [2022-10-16 12:28:12,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:28:12,028 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)] === [2022-10-16 12:28:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:12,028 INFO L85 PathProgramCache]: Analyzing trace with hash 318419058, now seen corresponding path program 1 times [2022-10-16 12:28:12,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:12,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849593301] [2022-10-16 12:28:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:12,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:28:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 12:28:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 12:28:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:28:12,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:12,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849593301] [2022-10-16 12:28:12,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849593301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:12,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:12,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:28:12,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153004011] [2022-10-16 12:28:12,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:12,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:28:12,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:12,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:28:12,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:28:12,151 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) [2022-10-16 12:28:12,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:12,187 INFO L93 Difference]: Finished difference Result 379 states and 481 transitions. [2022-10-16 12:28:12,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:28:12,188 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 [2022-10-16 12:28:12,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:12,193 INFO L225 Difference]: With dead ends: 379 [2022-10-16 12:28:12,193 INFO L226 Difference]: Without dead ends: 377 [2022-10-16 12:28:12,194 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 [2022-10-16 12:28:12,194 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 [2022-10-16 12:28:12,195 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] [2022-10-16 12:28:12,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-10-16 12:28:12,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 363. [2022-10-16 12:28:12,235 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) [2022-10-16 12:28:12,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 461 transitions. [2022-10-16 12:28:12,238 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 461 transitions. Word has length 52 [2022-10-16 12:28:12,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:12,238 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 461 transitions. [2022-10-16 12:28:12,239 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) [2022-10-16 12:28:12,239 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 461 transitions. [2022-10-16 12:28:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 12:28:12,241 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:12,242 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] [2022-10-16 12:28:12,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 12:28:12,242 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)] === [2022-10-16 12:28:12,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:12,243 INFO L85 PathProgramCache]: Analyzing trace with hash -284872946, now seen corresponding path program 1 times [2022-10-16 12:28:12,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:12,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242487518] [2022-10-16 12:28:12,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:12,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:28:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:28:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 12:28:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:28:12,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:12,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242487518] [2022-10-16 12:28:12,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242487518] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:12,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:12,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:28:12,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709453661] [2022-10-16 12:28:12,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:12,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:28:12,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:12,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:28:12,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:28:12,362 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) [2022-10-16 12:28:12,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:12,394 INFO L93 Difference]: Finished difference Result 363 states and 461 transitions. [2022-10-16 12:28:12,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:28:12,395 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 [2022-10-16 12:28:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:12,398 INFO L225 Difference]: With dead ends: 363 [2022-10-16 12:28:12,398 INFO L226 Difference]: Without dead ends: 362 [2022-10-16 12:28:12,398 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 [2022-10-16 12:28:12,399 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 [2022-10-16 12:28:12,400 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] [2022-10-16 12:28:12,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-10-16 12:28:12,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-10-16 12:28:12,416 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) [2022-10-16 12:28:12,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 459 transitions. [2022-10-16 12:28:12,418 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 459 transitions. Word has length 58 [2022-10-16 12:28:12,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:12,419 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 459 transitions. [2022-10-16 12:28:12,419 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) [2022-10-16 12:28:12,419 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 459 transitions. [2022-10-16 12:28:12,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 12:28:12,421 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:12,421 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] [2022-10-16 12:28:12,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 12:28:12,421 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)] === [2022-10-16 12:28:12,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:12,422 INFO L85 PathProgramCache]: Analyzing trace with hash -241126630, now seen corresponding path program 1 times [2022-10-16 12:28:12,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:12,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011911529] [2022-10-16 12:28:12,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:12,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:28:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:28:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 12:28:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 12:28:12,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:12,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011911529] [2022-10-16 12:28:12,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011911529] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:28:12,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849955353] [2022-10-16 12:28:12,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:12,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:28:12,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:28:12,564 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) [2022-10-16 12:28:12,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:28:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:12,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:28:12,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:28:12,856 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 12:28:12,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:28:12,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849955353] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:12,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:28:12,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:28:12,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97013733] [2022-10-16 12:28:12,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:12,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:28:12,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:12,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:28:12,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:28:12,859 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) [2022-10-16 12:28:12,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:12,921 INFO L93 Difference]: Finished difference Result 374 states and 477 transitions. [2022-10-16 12:28:12,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:28:12,922 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 [2022-10-16 12:28:12,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:12,925 INFO L225 Difference]: With dead ends: 374 [2022-10-16 12:28:12,925 INFO L226 Difference]: Without dead ends: 373 [2022-10-16 12:28:12,925 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 [2022-10-16 12:28:12,926 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, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:12,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 843 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:28:12,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-10-16 12:28:12,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 345. [2022-10-16 12:28:12,942 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) [2022-10-16 12:28:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 435 transitions. [2022-10-16 12:28:12,945 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 435 transitions. Word has length 59 [2022-10-16 12:28:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:12,945 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 435 transitions. [2022-10-16 12:28:12,945 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) [2022-10-16 12:28:12,946 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 435 transitions. [2022-10-16 12:28:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 12:28:12,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:12,947 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] [2022-10-16 12:28:12,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:28:13,160 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 [2022-10-16 12:28:13,161 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)] === [2022-10-16 12:28:13,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:13,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1513693777, now seen corresponding path program 1 times [2022-10-16 12:28:13,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:13,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918020583] [2022-10-16 12:28:13,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:13,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:14,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:28:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:14,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:28:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:14,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:14,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:14,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:28:14,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:14,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918020583] [2022-10-16 12:28:14,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918020583] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:14,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:14,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-16 12:28:14,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135739102] [2022-10-16 12:28:14,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:14,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 12:28:14,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:14,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 12:28:14,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-16 12:28:14,377 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) [2022-10-16 12:28:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:15,582 INFO L93 Difference]: Finished difference Result 757 states and 974 transitions. [2022-10-16 12:28:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 12:28:15,583 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 [2022-10-16 12:28:15,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:15,586 INFO L225 Difference]: With dead ends: 757 [2022-10-16 12:28:15,586 INFO L226 Difference]: Without dead ends: 432 [2022-10-16 12:28:15,588 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 [2022-10-16 12:28:15,588 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 126 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:15,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 3529 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 12:28:15,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-10-16 12:28:15,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 356. [2022-10-16 12:28:15,610 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) [2022-10-16 12:28:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 449 transitions. [2022-10-16 12:28:15,613 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 449 transitions. Word has length 58 [2022-10-16 12:28:15,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:15,613 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 449 transitions. [2022-10-16 12:28:15,614 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) [2022-10-16 12:28:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 449 transitions. [2022-10-16 12:28:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 12:28:15,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:15,615 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] [2022-10-16 12:28:15,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 12:28:15,616 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)] === [2022-10-16 12:28:15,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:15,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1692670031, now seen corresponding path program 1 times [2022-10-16 12:28:15,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:15,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540518882] [2022-10-16 12:28:15,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:15,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:16,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:28:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:28:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:16,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:28:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:16,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:28:16,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:16,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540518882] [2022-10-16 12:28:16,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540518882] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:16,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:16,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:28:16,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731520360] [2022-10-16 12:28:16,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:16,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:28:16,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:16,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:28:16,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:28:16,878 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) [2022-10-16 12:28:18,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:18,793 INFO L93 Difference]: Finished difference Result 453 states and 588 transitions. [2022-10-16 12:28:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:28:18,794 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 [2022-10-16 12:28:18,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:18,798 INFO L225 Difference]: With dead ends: 453 [2022-10-16 12:28:18,799 INFO L226 Difference]: Without dead ends: 451 [2022-10-16 12:28:18,799 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 [2022-10-16 12:28:18,800 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 146 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:18,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 2205 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 12:28:18,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-10-16 12:28:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 364. [2022-10-16 12:28:18,827 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) [2022-10-16 12:28:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 458 transitions. [2022-10-16 12:28:18,829 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 458 transitions. Word has length 65 [2022-10-16 12:28:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:18,830 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 458 transitions. [2022-10-16 12:28:18,830 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) [2022-10-16 12:28:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 458 transitions. [2022-10-16 12:28:18,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 12:28:18,832 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:18,832 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] [2022-10-16 12:28:18,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 12:28:18,832 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)] === [2022-10-16 12:28:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:18,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1464883529, now seen corresponding path program 1 times [2022-10-16 12:28:18,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:18,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375372011] [2022-10-16 12:28:18,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:18,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:18,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:18,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:28:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:18,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:28:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:18,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 12:28:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:28:18,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:18,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375372011] [2022-10-16 12:28:18,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375372011] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:28:18,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272222263] [2022-10-16 12:28:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:18,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:28:18,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:28:18,957 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) [2022-10-16 12:28:18,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:28:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:19,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:28:19,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:28:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:28:19,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:28:19,221 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:28:19,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272222263] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:28:19,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:28:19,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-10-16 12:28:19,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035156714] [2022-10-16 12:28:19,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:28:19,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:28:19,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:19,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:28:19,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:28:19,224 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) [2022-10-16 12:28:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:19,320 INFO L93 Difference]: Finished difference Result 744 states and 949 transitions. [2022-10-16 12:28:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:28:19,343 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 [2022-10-16 12:28:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:19,346 INFO L225 Difference]: With dead ends: 744 [2022-10-16 12:28:19,346 INFO L226 Difference]: Without dead ends: 400 [2022-10-16 12:28:19,347 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 [2022-10-16 12:28:19,348 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 [2022-10-16 12:28:19,348 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] [2022-10-16 12:28:19,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-10-16 12:28:19,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2022-10-16 12:28:19,387 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) [2022-10-16 12:28:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 506 transitions. [2022-10-16 12:28:19,391 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 506 transitions. Word has length 67 [2022-10-16 12:28:19,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:19,391 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 506 transitions. [2022-10-16 12:28:19,392 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) [2022-10-16 12:28:19,392 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 506 transitions. [2022-10-16 12:28:19,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 12:28:19,394 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:19,394 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] [2022-10-16 12:28:19,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:28:19,609 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 [2022-10-16 12:28:19,610 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)] === [2022-10-16 12:28:19,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:19,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1431536329, now seen corresponding path program 2 times [2022-10-16 12:28:19,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:19,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688314110] [2022-10-16 12:28:19,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:19,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:19,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 12:28:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 12:28:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:19,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 12:28:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-16 12:28:19,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:19,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688314110] [2022-10-16 12:28:19,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688314110] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:28:19,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714523482] [2022-10-16 12:28:19,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 12:28:19,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:28:19,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:28:19,779 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) [2022-10-16 12:28:19,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:28:19,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 12:28:19,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:28:19,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:28:20,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:28:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-10-16 12:28:20,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:28:20,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714523482] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:20,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:28:20,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-10-16 12:28:20,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868954595] [2022-10-16 12:28:20,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:20,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:28:20,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:20,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:28:20,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:28:20,048 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) [2022-10-16 12:28:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:20,091 INFO L93 Difference]: Finished difference Result 412 states and 524 transitions. [2022-10-16 12:28:20,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:28:20,092 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 [2022-10-16 12:28:20,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:20,096 INFO L225 Difference]: With dead ends: 412 [2022-10-16 12:28:20,096 INFO L226 Difference]: Without dead ends: 411 [2022-10-16 12:28:20,098 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 [2022-10-16 12:28:20,099 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 [2022-10-16 12:28:20,099 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] [2022-10-16 12:28:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-10-16 12:28:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 399. [2022-10-16 12:28:20,134 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) [2022-10-16 12:28:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 505 transitions. [2022-10-16 12:28:20,137 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 505 transitions. Word has length 87 [2022-10-16 12:28:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:20,138 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 505 transitions. [2022-10-16 12:28:20,138 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) [2022-10-16 12:28:20,138 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 505 transitions. [2022-10-16 12:28:20,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 12:28:20,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:20,147 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] [2022-10-16 12:28:20,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:28:20,360 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 [2022-10-16 12:28:20,360 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)] === [2022-10-16 12:28:20,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1159135852, now seen corresponding path program 1 times [2022-10-16 12:28:20,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:20,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870708753] [2022-10-16 12:28:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:20,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:20,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 12:28:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 12:28:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 12:28:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-16 12:28:20,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:20,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870708753] [2022-10-16 12:28:20,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870708753] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:28:20,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687007018] [2022-10-16 12:28:20,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:20,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:28:20,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:28:20,549 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) [2022-10-16 12:28:20,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 12:28:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:20,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:28:20,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:28:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-10-16 12:28:20,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:28:20,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687007018] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:20,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:28:20,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 12:28:20,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083402776] [2022-10-16 12:28:20,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:20,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:28:20,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:20,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:28:20,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:28:20,837 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) [2022-10-16 12:28:20,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:20,906 INFO L93 Difference]: Finished difference Result 411 states and 523 transitions. [2022-10-16 12:28:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:28:20,906 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 [2022-10-16 12:28:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:20,909 INFO L225 Difference]: With dead ends: 411 [2022-10-16 12:28:20,909 INFO L226 Difference]: Without dead ends: 404 [2022-10-16 12:28:20,910 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 [2022-10-16 12:28:20,910 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, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:20,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1227 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:28:20,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-10-16 12:28:20,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 359. [2022-10-16 12:28:20,953 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) [2022-10-16 12:28:20,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 451 transitions. [2022-10-16 12:28:20,956 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 451 transitions. Word has length 84 [2022-10-16 12:28:20,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:20,956 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 451 transitions. [2022-10-16 12:28:20,956 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) [2022-10-16 12:28:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 451 transitions. [2022-10-16 12:28:20,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 12:28:20,959 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:20,959 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] [2022-10-16 12:28:20,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 12:28:21,174 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 [2022-10-16 12:28:21,175 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)] === [2022-10-16 12:28:21,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:21,176 INFO L85 PathProgramCache]: Analyzing trace with hash 288788642, now seen corresponding path program 1 times [2022-10-16 12:28:21,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:21,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250733540] [2022-10-16 12:28:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:21,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:28:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:28:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:28:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:28:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:28:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:28:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:28:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 12:28:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:28:21,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:21,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250733540] [2022-10-16 12:28:21,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250733540] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:21,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:21,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:28:21,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899800005] [2022-10-16 12:28:21,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:21,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:28:21,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:21,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:28:21,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:28:21,421 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) [2022-10-16 12:28:22,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:22,505 INFO L93 Difference]: Finished difference Result 829 states and 1072 transitions. [2022-10-16 12:28:22,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:28:22,506 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 [2022-10-16 12:28:22,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:22,510 INFO L225 Difference]: With dead ends: 829 [2022-10-16 12:28:22,510 INFO L226 Difference]: Without dead ends: 490 [2022-10-16 12:28:22,512 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 [2022-10-16 12:28:22,512 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 323 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:22,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1508 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 12:28:22,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-10-16 12:28:22,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 363. [2022-10-16 12:28:22,546 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) [2022-10-16 12:28:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 456 transitions. [2022-10-16 12:28:22,549 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 456 transitions. Word has length 103 [2022-10-16 12:28:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:22,549 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 456 transitions. [2022-10-16 12:28:22,550 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) [2022-10-16 12:28:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 456 transitions. [2022-10-16 12:28:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-16 12:28:22,552 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:22,552 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] [2022-10-16 12:28:22,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 12:28:22,552 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)] === [2022-10-16 12:28:22,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:22,553 INFO L85 PathProgramCache]: Analyzing trace with hash -81191787, now seen corresponding path program 1 times [2022-10-16 12:28:22,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:22,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262471353] [2022-10-16 12:28:22,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:22,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:28:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:28:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:28:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:28:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:28:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:28:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:28:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:28:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:28:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 12:28:22,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:22,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262471353] [2022-10-16 12:28:22,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262471353] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:28:22,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:28:22,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:28:22,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102494659] [2022-10-16 12:28:22,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:28:22,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:28:22,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:22,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:28:22,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:28:22,796 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) [2022-10-16 12:28:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:23,707 INFO L93 Difference]: Finished difference Result 745 states and 946 transitions. [2022-10-16 12:28:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:28:23,707 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 [2022-10-16 12:28:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:23,711 INFO L225 Difference]: With dead ends: 745 [2022-10-16 12:28:23,711 INFO L226 Difference]: Without dead ends: 402 [2022-10-16 12:28:23,712 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 [2022-10-16 12:28:23,713 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 180 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:23,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1032 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 12:28:23,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-10-16 12:28:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 364. [2022-10-16 12:28:23,745 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) [2022-10-16 12:28:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 457 transitions. [2022-10-16 12:28:23,748 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 457 transitions. Word has length 113 [2022-10-16 12:28:23,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:23,748 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 457 transitions. [2022-10-16 12:28:23,749 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) [2022-10-16 12:28:23,749 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 457 transitions. [2022-10-16 12:28:23,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-16 12:28:23,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:23,751 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] [2022-10-16 12:28:23,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 12:28:23,751 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)] === [2022-10-16 12:28:23,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:23,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1452999085, now seen corresponding path program 1 times [2022-10-16 12:28:23,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:23,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173620216] [2022-10-16 12:28:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:23,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:26,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:26,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:28:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:26,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:28:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:28:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:28:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:28:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:28:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:28:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:28:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:28:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:28:27,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:27,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173620216] [2022-10-16 12:28:27,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173620216] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:28:27,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945445918] [2022-10-16 12:28:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:27,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:28:27,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:28:27,305 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) [2022-10-16 12:28:27,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 12:28:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:27,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 82 conjunts are in the unsatisfiable core [2022-10-16 12:28:27,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:28:27,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,771 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 [2022-10-16 12:28:27,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:27,825 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 [2022-10-16 12:28:28,005 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 [2022-10-16 12:28:28,221 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 [2022-10-16 12:28:28,421 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 [2022-10-16 12:28:28,505 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 [2022-10-16 12:28:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:28:28,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:28:28,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945445918] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:28:28,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 12:28:28,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 26 [2022-10-16 12:28:28,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715662455] [2022-10-16 12:28:28,771 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 12:28:28,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 12:28:28,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:28,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 12:28:28,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=956, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 12:28:28,773 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) [2022-10-16 12:28:33,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:28:33,369 INFO L93 Difference]: Finished difference Result 596 states and 785 transitions. [2022-10-16 12:28:33,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 12:28:33,370 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 [2022-10-16 12:28:33,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:28:33,378 INFO L225 Difference]: With dead ends: 596 [2022-10-16 12:28:33,378 INFO L226 Difference]: Without dead ends: 594 [2022-10-16 12:28:33,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 161 SyntacticMatches, 10 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=275, Invalid=2587, Unknown=0, NotChecked=0, Total=2862 [2022-10-16 12:28:33,382 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 759 mSDsluCounter, 5391 mSDsCounter, 0 mSdLazyCounter, 3574 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 5874 SdHoareTripleChecker+Invalid, 4276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 3574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 425 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:28:33,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 5874 Invalid, 4276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 3574 Invalid, 0 Unknown, 425 Unchecked, 3.9s Time] [2022-10-16 12:28:33,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-10-16 12:28:33,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 412. [2022-10-16 12:28:33,434 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) [2022-10-16 12:28:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 513 transitions. [2022-10-16 12:28:33,437 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 513 transitions. Word has length 113 [2022-10-16 12:28:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:28:33,437 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 513 transitions. [2022-10-16 12:28:33,438 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) [2022-10-16 12:28:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 513 transitions. [2022-10-16 12:28:33,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 12:28:33,440 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:28:33,440 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] [2022-10-16 12:28:33,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 12:28:33,653 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 [2022-10-16 12:28:33,654 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)] === [2022-10-16 12:28:33,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:28:33,655 INFO L85 PathProgramCache]: Analyzing trace with hash 783916498, now seen corresponding path program 1 times [2022-10-16 12:28:33,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:28:33,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065505618] [2022-10-16 12:28:33,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:33,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:28:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:28:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:28:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:28:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:28:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:28:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:28:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:28:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 12:28:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:28:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 12:28:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:28:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:28:37,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:28:37,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065505618] [2022-10-16 12:28:37,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065505618] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:28:37,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108391819] [2022-10-16 12:28:37,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:28:37,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:28:37,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:28:37,865 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:28:37,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 12:28:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:28:38,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 97 conjunts are in the unsatisfiable core [2022-10-16 12:28:38,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:28:38,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,288 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 [2022-10-16 12:28:38,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:28:38,334 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 [2022-10-16 12:28:39,123 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_992 Int)) (let ((.cse0 (select |c_old(#memory_int)| |c_ibmpex_send_message_#in~data#1.base|)) (.cse1 (+ 487 |c_ibmpex_send_message_#in~data#1.offset|))) (and (<= v_ArrVal_992 (+ (select .cse0 .cse1) 1)) (= (store |c_old(#memory_int)| |c_ibmpex_send_message_#in~data#1.base| (store .cse0 .cse1 v_ArrVal_992)) |c_#memory_int|)))) is different from true [2022-10-16 12:28:39,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 12:28:39,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-10-16 12:28:39,340 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 [2022-10-16 12:28:39,638 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 [2022-10-16 12:28:39,909 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 [2022-10-16 12:28:39,997 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 [2022-10-16 12:28:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:28:40,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:28:40,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108391819] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:28:40,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 12:28:40,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14] total 36 [2022-10-16 12:28:40,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62559600] [2022-10-16 12:28:40,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 12:28:40,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 12:28:40,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:28:40,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 12:28:40,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1487, Unknown=1, NotChecked=78, Total=1722 [2022-10-16 12:28:40,282 INFO L87 Difference]: Start difference. First operand 412 states and 513 transitions. Second operand has 37 states, 32 states have (on average 4.65625) internal successors, (149), 29 states have internal predecessors, (149), 10 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) [2022-10-16 12:29:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:29:00,970 INFO L93 Difference]: Finished difference Result 775 states and 1030 transitions. [2022-10-16 12:29:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 12:29:00,975 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 4.65625) internal successors, (149), 29 states have internal predecessors, (149), 10 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) Word has length 116 [2022-10-16 12:29:00,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:29:00,981 INFO L225 Difference]: With dead ends: 775 [2022-10-16 12:29:00,981 INFO L226 Difference]: Without dead ends: 774 [2022-10-16 12:29:00,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 158 SyntacticMatches, 10 SemanticMatches, 70 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1281 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=480, Invalid=4474, Unknown=20, NotChecked=138, Total=5112 [2022-10-16 12:29:00,984 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 769 mSDsluCounter, 7105 mSDsCounter, 0 mSdLazyCounter, 5645 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 7579 SdHoareTripleChecker+Invalid, 7280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 5645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1372 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:29:00,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 7579 Invalid, 7280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 5645 Invalid, 0 Unknown, 1372 Unchecked, 6.7s Time] [2022-10-16 12:29:00,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-10-16 12:29:01,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 432. [2022-10-16 12:29:01,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 324 states have (on average 1.2746913580246915) internal successors, (413), 349 states have internal predecessors, (413), 53 states have call successors, (53), 28 states have call predecessors, (53), 32 states have return successors, (64), 56 states have call predecessors, (64), 53 states have call successors, (64) [2022-10-16 12:29:01,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 530 transitions. [2022-10-16 12:29:01,037 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 530 transitions. Word has length 116 [2022-10-16 12:29:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:29:01,038 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 530 transitions. [2022-10-16 12:29:01,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 4.65625) internal successors, (149), 29 states have internal predecessors, (149), 10 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) [2022-10-16 12:29:01,038 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 530 transitions. [2022-10-16 12:29:01,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 12:29:01,040 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:29:01,040 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:29:01,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 12:29:01,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:29:01,255 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ibmpex_send_messageErr1ASSERT_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)] === [2022-10-16 12:29:01,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:29:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1468392173, now seen corresponding path program 1 times [2022-10-16 12:29:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:29:01,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287511748] [2022-10-16 12:29:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:29:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:29:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:29:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:29:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:29:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:29:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:04,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 12:29:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:05,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:29:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:05,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 12:29:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:05,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:29:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:29:05,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:29:05,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287511748] [2022-10-16 12:29:05,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287511748] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:29:05,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42247762] [2022-10-16 12:29:05,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:05,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:29:05,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:29:05,027 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:29:05,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 12:29:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:05,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 78 conjunts are in the unsatisfiable core [2022-10-16 12:29:05,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:29:05,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 12:29:05,711 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 30 treesize of output 33 [2022-10-16 12:29:06,057 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 25 treesize of output 24 [2022-10-16 12:29:06,358 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 30 treesize of output 33 [2022-10-16 12:29:06,436 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 21 treesize of output 9 [2022-10-16 12:29:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:29:06,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:29:06,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42247762] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:29:06,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 12:29:06,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 10] total 32 [2022-10-16 12:29:06,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964016390] [2022-10-16 12:29:06,782 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 12:29:06,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 12:29:06,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:29:06,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 12:29:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1354, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 12:29:06,787 INFO L87 Difference]: Start difference. First operand 432 states and 530 transitions. Second operand has 33 states, 28 states have (on average 5.392857142857143) internal successors, (151), 27 states have internal predecessors, (151), 10 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) [2022-10-16 12:29:14,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:29:14,836 INFO L93 Difference]: Finished difference Result 847 states and 1122 transitions. [2022-10-16 12:29:14,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-10-16 12:29:14,837 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 5.392857142857143) internal successors, (151), 27 states have internal predecessors, (151), 10 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) Word has length 117 [2022-10-16 12:29:14,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:29:14,843 INFO L225 Difference]: With dead ends: 847 [2022-10-16 12:29:14,843 INFO L226 Difference]: Without dead ends: 846 [2022-10-16 12:29:14,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 161 SyntacticMatches, 11 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=411, Invalid=4281, Unknown=0, NotChecked=0, Total=4692 [2022-10-16 12:29:14,846 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 673 mSDsluCounter, 11420 mSDsCounter, 0 mSdLazyCounter, 6434 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 12166 SdHoareTripleChecker+Invalid, 7116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 6434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 481 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:29:14,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 12166 Invalid, 7116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 6434 Invalid, 0 Unknown, 481 Unchecked, 6.5s Time] [2022-10-16 12:29:14,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-10-16 12:29:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 436. [2022-10-16 12:29:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 328 states have (on average 1.274390243902439) internal successors, (418), 353 states have internal predecessors, (418), 53 states have call successors, (53), 28 states have call predecessors, (53), 32 states have return successors, (63), 56 states have call predecessors, (63), 53 states have call successors, (63) [2022-10-16 12:29:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 534 transitions. [2022-10-16 12:29:14,904 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 534 transitions. Word has length 117 [2022-10-16 12:29:14,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:29:14,905 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 534 transitions. [2022-10-16 12:29:14,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 5.392857142857143) internal successors, (151), 27 states have internal predecessors, (151), 10 states have call successors, (24), 6 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 8 states have call successors, (22) [2022-10-16 12:29:14,905 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 534 transitions. [2022-10-16 12:29:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-10-16 12:29:14,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:29:14,908 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:29:14,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 12:29:15,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:29:15,122 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 12:29:15,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:29:15,122 INFO L85 PathProgramCache]: Analyzing trace with hash -2058197356, now seen corresponding path program 1 times [2022-10-16 12:29:15,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:29:15,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235797107] [2022-10-16 12:29:15,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:15,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:29:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:29:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:29:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:29:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:29:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:29:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:29:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:29:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:29:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:29:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 12:29:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:29:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:29:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:15,370 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-16 12:29:15,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:29:15,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235797107] [2022-10-16 12:29:15,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235797107] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:29:15,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:29:15,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:29:15,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836627251] [2022-10-16 12:29:15,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:29:15,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:29:15,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:29:15,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:29:15,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:29:15,373 INFO L87 Difference]: Start difference. First operand 436 states and 534 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:29:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:29:16,152 INFO L93 Difference]: Finished difference Result 893 states and 1104 transitions. [2022-10-16 12:29:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:29:16,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 156 [2022-10-16 12:29:16,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:29:16,156 INFO L225 Difference]: With dead ends: 893 [2022-10-16 12:29:16,156 INFO L226 Difference]: Without dead ends: 477 [2022-10-16 12:29:16,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:29:16,158 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 180 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:29:16,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1032 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 12:29:16,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-10-16 12:29:16,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 437. [2022-10-16 12:29:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 329 states have (on average 1.2735562310030395) internal successors, (419), 354 states have internal predecessors, (419), 53 states have call successors, (53), 28 states have call predecessors, (53), 32 states have return successors, (63), 56 states have call predecessors, (63), 53 states have call successors, (63) [2022-10-16 12:29:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 535 transitions. [2022-10-16 12:29:16,208 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 535 transitions. Word has length 156 [2022-10-16 12:29:16,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:29:16,209 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 535 transitions. [2022-10-16 12:29:16,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:29:16,209 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 535 transitions. [2022-10-16 12:29:16,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-10-16 12:29:16,212 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:29:16,213 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:29:16,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 12:29:16,213 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 12:29:16,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:29:16,213 INFO L85 PathProgramCache]: Analyzing trace with hash 185785942, now seen corresponding path program 1 times [2022-10-16 12:29:16,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:29:16,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459431712] [2022-10-16 12:29:16,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:16,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:29:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:29:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:29:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:29:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:29:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:29:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:29:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:29:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:29:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:29:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 12:29:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:29:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:29:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:16,516 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-16 12:29:16,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:29:16,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459431712] [2022-10-16 12:29:16,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459431712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:29:16,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:29:16,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:29:16,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316459126] [2022-10-16 12:29:16,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:29:16,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:29:16,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:29:16,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:29:16,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:29:16,518 INFO L87 Difference]: Start difference. First operand 437 states and 535 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:29:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:29:17,554 INFO L93 Difference]: Finished difference Result 996 states and 1255 transitions. [2022-10-16 12:29:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:29:17,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 156 [2022-10-16 12:29:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:29:17,561 INFO L225 Difference]: With dead ends: 996 [2022-10-16 12:29:17,561 INFO L226 Difference]: Without dead ends: 579 [2022-10-16 12:29:17,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:29:17,567 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 337 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:29:17,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1527 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 12:29:17,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-10-16 12:29:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 439. [2022-10-16 12:29:17,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 331 states have (on average 1.2719033232628398) internal successors, (421), 356 states have internal predecessors, (421), 53 states have call successors, (53), 28 states have call predecessors, (53), 32 states have return successors, (63), 56 states have call predecessors, (63), 53 states have call successors, (63) [2022-10-16 12:29:17,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 537 transitions. [2022-10-16 12:29:17,652 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 537 transitions. Word has length 156 [2022-10-16 12:29:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:29:17,653 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 537 transitions. [2022-10-16 12:29:17,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:29:17,653 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 537 transitions. [2022-10-16 12:29:17,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-10-16 12:29:17,656 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:29:17,656 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:29:17,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 12:29:17,657 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_device_create_file_dev_attr_of_sensor_device_attributeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_device_create_file_dev_attr_of_sensor_device_attributeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2022-10-16 12:29:17,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:29:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1392764438, now seen corresponding path program 1 times [2022-10-16 12:29:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:29:17,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972921161] [2022-10-16 12:29:17,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:17,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:29:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:29:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:29:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:29:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:29:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:29:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:29:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:29:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:17,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:29:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:29:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:18,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 12:29:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:18,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:29:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:18,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:29:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:18,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:18,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:18,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:18,048 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-16 12:29:18,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:29:18,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972921161] [2022-10-16 12:29:18,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972921161] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:29:18,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:29:18,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:29:18,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824789367] [2022-10-16 12:29:18,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:29:18,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:29:18,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:29:18,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:29:18,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:29:18,052 INFO L87 Difference]: Start difference. First operand 439 states and 537 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:29:19,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:29:19,169 INFO L93 Difference]: Finished difference Result 936 states and 1163 transitions. [2022-10-16 12:29:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 12:29:19,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 156 [2022-10-16 12:29:19,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:29:19,182 INFO L225 Difference]: With dead ends: 936 [2022-10-16 12:29:19,182 INFO L226 Difference]: Without dead ends: 932 [2022-10-16 12:29:19,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:29:19,189 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 655 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:29:19,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1117 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 12:29:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-10-16 12:29:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 833. [2022-10-16 12:29:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 641 states have (on average 1.2745709828393135) internal successors, (817), 669 states have internal predecessors, (817), 105 states have call successors, (105), 56 states have call predecessors, (105), 64 states have return successors, (127), 111 states have call predecessors, (127), 105 states have call successors, (127) [2022-10-16 12:29:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1049 transitions. [2022-10-16 12:29:19,325 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1049 transitions. Word has length 156 [2022-10-16 12:29:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:29:19,328 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1049 transitions. [2022-10-16 12:29:19,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 12:29:19,329 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1049 transitions. [2022-10-16 12:29:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-16 12:29:19,332 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:29:19,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:29:19,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 12:29:19,333 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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)] === [2022-10-16 12:29:19,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:29:19,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1860155450, now seen corresponding path program 1 times [2022-10-16 12:29:19,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:29:19,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96285311] [2022-10-16 12:29:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:19,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:29:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:29:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:29:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:29:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:29:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:29:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:29:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:29:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:29:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:29:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 12:29:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:29:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:29:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-16 12:29:23,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:29:23,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96285311] [2022-10-16 12:29:23,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96285311] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:29:23,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374038124] [2022-10-16 12:29:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:23,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:29:23,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:29:23,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:29:23,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 12:29:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:23,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 1525 conjuncts, 96 conjunts are in the unsatisfiable core [2022-10-16 12:29:23,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:29:23,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:23,976 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 [2022-10-16 12:29:24,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,015 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 [2022-10-16 12:29:24,183 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 [2022-10-16 12:29:24,394 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 [2022-10-16 12:29:24,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:24,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-10-16 12:29:24,763 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 [2022-10-16 12:29:24,937 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 [2022-10-16 12:29:24,950 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 33 treesize of output 40 [2022-10-16 12:29:25,044 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 [2022-10-16 12:29:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 12:29:25,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:29:35,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374038124] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:29:35,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 12:29:35,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 10] total 29 [2022-10-16 12:29:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486912287] [2022-10-16 12:29:35,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 12:29:35,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 12:29:35,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:29:35,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 12:29:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1208, Unknown=8, NotChecked=0, Total=1332 [2022-10-16 12:29:35,932 INFO L87 Difference]: Start difference. First operand 833 states and 1049 transitions. Second operand has 30 states, 27 states have (on average 6.37037037037037) internal successors, (172), 23 states have internal predecessors, (172), 12 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 13 states have call predecessors, (31), 10 states have call successors, (31) [2022-10-16 12:29:47,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:29:47,964 INFO L93 Difference]: Finished difference Result 2099 states and 2892 transitions. [2022-10-16 12:29:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 12:29:47,965 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 6.37037037037037) internal successors, (172), 23 states have internal predecessors, (172), 12 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 13 states have call predecessors, (31), 10 states have call successors, (31) Word has length 158 [2022-10-16 12:29:47,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:29:47,980 INFO L225 Difference]: With dead ends: 2099 [2022-10-16 12:29:47,980 INFO L226 Difference]: Without dead ends: 2097 [2022-10-16 12:29:47,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 231 SyntacticMatches, 14 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1286 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=498, Invalid=5499, Unknown=9, NotChecked=0, Total=6006 [2022-10-16 12:29:47,984 INFO L413 NwaCegarLoop]: 835 mSDtfsCounter, 1179 mSDsluCounter, 12371 mSDsCounter, 0 mSdLazyCounter, 7386 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 13206 SdHoareTripleChecker+Invalid, 8449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 7386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 570 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:29:47,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 13206 Invalid, 8449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [493 Valid, 7386 Invalid, 0 Unknown, 570 Unchecked, 9.7s Time] [2022-10-16 12:29:47,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2022-10-16 12:29:48,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 961. [2022-10-16 12:29:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 741 states have (on average 1.2860998650472335) internal successors, (953), 769 states have internal predecessors, (953), 119 states have call successors, (119), 68 states have call predecessors, (119), 78 states have return successors, (145), 127 states have call predecessors, (145), 119 states have call successors, (145) [2022-10-16 12:29:48,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1217 transitions. [2022-10-16 12:29:48,143 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1217 transitions. Word has length 158 [2022-10-16 12:29:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:29:48,144 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1217 transitions. [2022-10-16 12:29:48,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 6.37037037037037) internal successors, (172), 23 states have internal predecessors, (172), 12 states have call successors, (33), 7 states have call predecessors, (33), 6 states have return successors, (31), 13 states have call predecessors, (31), 10 states have call successors, (31) [2022-10-16 12:29:48,144 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1217 transitions. [2022-10-16 12:29:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 12:29:48,147 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:29:48,147 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:29:48,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 12:29:48,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 12:29:48,364 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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)] === [2022-10-16 12:29:48,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:29:48,365 INFO L85 PathProgramCache]: Analyzing trace with hash 947457129, now seen corresponding path program 1 times [2022-10-16 12:29:48,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:29:48,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160129035] [2022-10-16 12:29:48,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:48,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:29:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:29:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:29:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:29:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:29:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:29:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:29:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:29:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:29:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:29:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 12:29:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 12:29:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 12:29:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 12:29:49,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:29:49,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160129035] [2022-10-16 12:29:49,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160129035] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:29:49,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:29:49,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-16 12:29:49,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469005861] [2022-10-16 12:29:49,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:29:49,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 12:29:49,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:29:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 12:29:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:29:49,560 INFO L87 Difference]: Start difference. First operand 961 states and 1217 transitions. Second operand has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 2 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (17), 4 states have call predecessors, (17), 1 states have call successors, (17) [2022-10-16 12:29:51,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:29:51,164 INFO L93 Difference]: Finished difference Result 2004 states and 2549 transitions. [2022-10-16 12:29:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 12:29:51,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 2 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (17), 4 states have call predecessors, (17), 1 states have call successors, (17) Word has length 154 [2022-10-16 12:29:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:29:51,176 INFO L225 Difference]: With dead ends: 2004 [2022-10-16 12:29:51,176 INFO L226 Difference]: Without dead ends: 1063 [2022-10-16 12:29:51,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-10-16 12:29:51,180 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 178 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:29:51,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 2847 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 12:29:51,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-10-16 12:29:51,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 979. [2022-10-16 12:29:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 755 states have (on average 1.280794701986755) internal successors, (967), 781 states have internal predecessors, (967), 119 states have call successors, (119), 68 states have call predecessors, (119), 82 states have return successors, (149), 133 states have call predecessors, (149), 119 states have call successors, (149) [2022-10-16 12:29:51,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1235 transitions. [2022-10-16 12:29:51,335 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1235 transitions. Word has length 154 [2022-10-16 12:29:51,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:29:51,335 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1235 transitions. [2022-10-16 12:29:51,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 2 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (17), 4 states have call predecessors, (17), 1 states have call successors, (17) [2022-10-16 12:29:51,335 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1235 transitions. [2022-10-16 12:29:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-16 12:29:51,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:29:51,339 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:29:51,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 12:29:51,339 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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)] === [2022-10-16 12:29:51,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:29:51,340 INFO L85 PathProgramCache]: Analyzing trace with hash 146316963, now seen corresponding path program 2 times [2022-10-16 12:29:51,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:29:51,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498759860] [2022-10-16 12:29:51,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:29:51,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:29:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:29:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:29:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:29:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:29:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 12:29:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 12:29:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 12:29:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:29:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:29:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 12:29:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 12:29:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 12:29:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:29:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:29:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:29:55,838 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 12:29:55,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:29:55,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498759860] [2022-10-16 12:29:55,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498759860] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:29:55,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618981375] [2022-10-16 12:29:55,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 12:29:55,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:29:55,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:29:55,841 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:29:55,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 12:29:56,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 12:29:56,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:29:56,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 86 conjunts are in the unsatisfiable core [2022-10-16 12:29:56,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:29:56,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,465 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 [2022-10-16 12:29:56,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:56,509 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 [2022-10-16 12:29:56,692 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 [2022-10-16 12:29:56,925 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 [2022-10-16 12:29:57,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:57,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:29:57,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-10-16 12:29:58,100 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2480 Int)) (let ((.cse0 (select |c_old(#memory_int)| |c_ibmpex_send_message_#in~data#1.base|)) (.cse1 (+ 487 |c_ibmpex_send_message_#in~data#1.offset|))) (and (= (store |c_old(#memory_int)| |c_ibmpex_send_message_#in~data#1.base| (store .cse0 .cse1 v_ArrVal_2480)) |c_#memory_int|) (<= v_ArrVal_2480 (+ (select .cse0 .cse1) 1))))) is different from true [2022-10-16 12:29:58,123 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 34 treesize of output 18 [2022-10-16 12:29:58,308 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 [2022-10-16 12:29:58,474 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 [2022-10-16 12:29:58,490 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 33 treesize of output 40 [2022-10-16 12:29:58,585 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 [2022-10-16 12:29:58,588 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2022-10-16 12:29:58,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:29:58,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618981375] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:29:58,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 12:29:58,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 15] total 36 [2022-10-16 12:29:58,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660838375] [2022-10-16 12:29:58,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 12:29:58,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 12:29:58,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:29:58,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 12:29:58,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1574, Unknown=1, NotChecked=80, Total=1806 [2022-10-16 12:29:58,950 INFO L87 Difference]: Start difference. First operand 979 states and 1235 transitions. Second operand has 37 states, 32 states have (on average 6.03125) internal successors, (193), 30 states have internal predecessors, (193), 13 states have call successors, (33), 8 states have call predecessors, (33), 9 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) [2022-10-16 12:30:23,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:30:23,696 INFO L93 Difference]: Finished difference Result 1901 states and 2573 transitions. [2022-10-16 12:30:23,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 12:30:23,697 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 6.03125) internal successors, (193), 30 states have internal predecessors, (193), 13 states have call successors, (33), 8 states have call predecessors, (33), 9 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) Word has length 161 [2022-10-16 12:30:23,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:30:23,709 INFO L225 Difference]: With dead ends: 1901 [2022-10-16 12:30:23,709 INFO L226 Difference]: Without dead ends: 1900 [2022-10-16 12:30:23,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 223 SyntacticMatches, 13 SemanticMatches, 84 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1689 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=593, Invalid=6527, Unknown=24, NotChecked=166, Total=7310 [2022-10-16 12:30:23,714 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 792 mSDsluCounter, 10545 mSDsCounter, 0 mSdLazyCounter, 6753 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 11215 SdHoareTripleChecker+Invalid, 9078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 6753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2048 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:30:23,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 11215 Invalid, 9078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [277 Valid, 6753 Invalid, 0 Unknown, 2048 Unchecked, 8.3s Time] [2022-10-16 12:30:23,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-10-16 12:30:23,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1119. [2022-10-16 12:30:23,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 865 states have (on average 1.2867052023121388) internal successors, (1113), 889 states have internal predecessors, (1113), 133 states have call successors, (133), 80 states have call predecessors, (133), 98 states have return successors, (171), 153 states have call predecessors, (171), 133 states have call successors, (171) [2022-10-16 12:30:23,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1417 transitions. [2022-10-16 12:30:23,888 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1417 transitions. Word has length 161 [2022-10-16 12:30:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:30:23,891 INFO L495 AbstractCegarLoop]: Abstraction has 1119 states and 1417 transitions. [2022-10-16 12:30:23,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 6.03125) internal successors, (193), 30 states have internal predecessors, (193), 13 states have call successors, (33), 8 states have call predecessors, (33), 9 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) [2022-10-16 12:30:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1417 transitions. [2022-10-16 12:30:23,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-16 12:30:23,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:30:23,895 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:30:23,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 12:30:24,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 12:30:24,111 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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)] === [2022-10-16 12:30:24,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:30:24,112 INFO L85 PathProgramCache]: Analyzing trace with hash -984564965, now seen corresponding path program 3 times [2022-10-16 12:30:24,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:30:24,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611457739] [2022-10-16 12:30:24,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:30:24,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:30:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:30:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:30:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:30:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:30:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:30:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:30:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:30:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:30:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 12:30:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:30:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 12:30:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:30:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:30:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-10-16 12:30:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-10-16 12:30:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:30:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:30:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:30:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:30:27,934 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 12:30:27,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:30:27,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611457739] [2022-10-16 12:30:27,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611457739] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:30:27,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386301059] [2022-10-16 12:30:27,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 12:30:27,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:30:27,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:30:27,937 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:30:27,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 12:30:28,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 12:30:28,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:30:28,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 1604 conjuncts, 84 conjunts are in the unsatisfiable core [2022-10-16 12:30:28,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:30:28,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,894 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 [2022-10-16 12:30:28,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:28,945 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 [2022-10-16 12:30:29,900 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2818 Int)) (let ((.cse0 (select |c_old(#memory_int)| |c_ibmpex_send_message_#in~data#1.base|)) (.cse1 (+ 487 |c_ibmpex_send_message_#in~data#1.offset|))) (and (<= v_ArrVal_2818 (+ (select .cse0 .cse1) 1)) (= (store |c_old(#memory_int)| |c_ibmpex_send_message_#in~data#1.base| (store .cse0 .cse1 v_ArrVal_2818)) |c_#memory_int|)))) is different from true [2022-10-16 12:30:29,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 12:30:29,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-10-16 12:30:30,142 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 [2022-10-16 12:30:30,521 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 [2022-10-16 12:30:30,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:30,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:30:30,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2022-10-16 12:30:31,035 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 [2022-10-16 12:30:31,226 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 [2022-10-16 12:30:31,241 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 33 treesize of output 40 [2022-10-16 12:30:31,352 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 [2022-10-16 12:30:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 2 not checked. [2022-10-16 12:30:31,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:30:43,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386301059] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:30:43,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 12:30:43,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 15] total 39 [2022-10-16 12:30:43,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182908876] [2022-10-16 12:30:43,398 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 12:30:43,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 12:30:43,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:30:43,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 12:30:43,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1883, Unknown=9, NotChecked=88, Total=2162 [2022-10-16 12:30:43,401 INFO L87 Difference]: Start difference. First operand 1119 states and 1417 transitions. Second operand has 40 states, 34 states have (on average 5.5) internal successors, (187), 33 states have internal predecessors, (187), 15 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (31), 13 states have call predecessors, (31), 13 states have call successors, (31) [2022-10-16 12:31:05,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:31:05,868 INFO L93 Difference]: Finished difference Result 2341 states and 3199 transitions. [2022-10-16 12:31:05,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-16 12:31:05,868 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 34 states have (on average 5.5) internal successors, (187), 33 states have internal predecessors, (187), 15 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (31), 13 states have call predecessors, (31), 13 states have call successors, (31) Word has length 161 [2022-10-16 12:31:05,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:31:05,883 INFO L225 Difference]: With dead ends: 2341 [2022-10-16 12:31:05,883 INFO L226 Difference]: Without dead ends: 2340 [2022-10-16 12:31:05,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 224 SyntacticMatches, 14 SemanticMatches, 82 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1865 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=534, Invalid=6250, Unknown=26, NotChecked=162, Total=6972 [2022-10-16 12:31:05,888 INFO L413 NwaCegarLoop]: 807 mSDtfsCounter, 953 mSDsluCounter, 12249 mSDsCounter, 0 mSdLazyCounter, 6267 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 13056 SdHoareTripleChecker+Invalid, 8296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 6267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1704 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:31:05,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 13056 Invalid, 8296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [325 Valid, 6267 Invalid, 0 Unknown, 1704 Unchecked, 7.6s Time] [2022-10-16 12:31:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2022-10-16 12:31:06,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 1319. [2022-10-16 12:31:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1009 states have (on average 1.269573835480674) internal successors, (1281), 1039 states have internal predecessors, (1281), 157 states have call successors, (157), 102 states have call predecessors, (157), 130 states have return successors, (221), 181 states have call predecessors, (221), 157 states have call successors, (221) [2022-10-16 12:31:06,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1659 transitions. [2022-10-16 12:31:06,119 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1659 transitions. Word has length 161 [2022-10-16 12:31:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:31:06,120 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1659 transitions. [2022-10-16 12:31:06,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 34 states have (on average 5.5) internal successors, (187), 33 states have internal predecessors, (187), 15 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (31), 13 states have call predecessors, (31), 13 states have call successors, (31) [2022-10-16 12:31:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1659 transitions. [2022-10-16 12:31:06,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-16 12:31:06,123 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:31:06,123 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:31:06,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 12:31:06,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 12:31:06,339 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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)] === [2022-10-16 12:31:06,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:31:06,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1023015646, now seen corresponding path program 1 times [2022-10-16 12:31:06,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:31:06,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405266877] [2022-10-16 12:31:06,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:31:06,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:31:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:10,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:31:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:31:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:31:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:31:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:31:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:31:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:31:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 12:31:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 12:31:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 12:31:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 12:31:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 12:31:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-10-16 12:31:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 12:31:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 12:31:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:31:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:31:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:31:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 12:31:11,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:31:11,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405266877] [2022-10-16 12:31:11,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405266877] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:31:11,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799914098] [2022-10-16 12:31:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:31:11,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:31:11,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:31:11,362 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:31:11,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 12:31:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:11,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 1603 conjuncts, 117 conjunts are in the unsatisfiable core [2022-10-16 12:31:11,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:31:11,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:11,968 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 [2022-10-16 12:31:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:12,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:12,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:12,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:12,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:12,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:12,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 12:31:12,011 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 [2022-10-16 12:31:12,820 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3161 Int)) (let ((.cse0 (select |c_old(#memory_int)| |c_ibmpex_send_message_#in~data#1.base|)) (.cse1 (+ 487 |c_ibmpex_send_message_#in~data#1.offset|))) (and (<= v_ArrVal_3161 (+ (select .cse0 .cse1) 1)) (= (store |c_old(#memory_int)| |c_ibmpex_send_message_#in~data#1.base| (store .cse0 .cse1 v_ArrVal_3161)) |c_#memory_int|)))) is different from true [2022-10-16 12:31:12,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 12:31:12,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2022-10-16 12:31:13,049 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 [2022-10-16 12:31:13,414 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 [2022-10-16 12:31:13,697 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 [2022-10-16 12:31:13,879 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 [2022-10-16 12:31:14,043 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 [2022-10-16 12:31:14,057 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 33 treesize of output 40 [2022-10-16 12:31:14,165 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 [2022-10-16 12:31:14,167 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 2 not checked. [2022-10-16 12:31:14,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:31:14,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799914098] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:31:14,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 12:31:14,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 16] total 38 [2022-10-16 12:31:14,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992199048] [2022-10-16 12:31:14,656 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 12:31:14,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-16 12:31:14,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:31:14,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-16 12:31:14,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1892, Unknown=1, NotChecked=88, Total=2162 [2022-10-16 12:31:14,658 INFO L87 Difference]: Start difference. First operand 1319 states and 1659 transitions. Second operand has 39 states, 34 states have (on average 5.588235294117647) internal successors, (190), 32 states have internal predecessors, (190), 14 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) [2022-10-16 12:31:39,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:31:39,639 INFO L93 Difference]: Finished difference Result 2599 states and 3530 transitions. [2022-10-16 12:31:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-10-16 12:31:39,640 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 34 states have (on average 5.588235294117647) internal successors, (190), 32 states have internal predecessors, (190), 14 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) Word has length 162 [2022-10-16 12:31:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:31:39,656 INFO L225 Difference]: With dead ends: 2599 [2022-10-16 12:31:39,657 INFO L226 Difference]: Without dead ends: 2598 [2022-10-16 12:31:39,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 259 SyntacticMatches, 14 SemanticMatches, 91 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2188 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=674, Invalid=7682, Unknown=20, NotChecked=180, Total=8556 [2022-10-16 12:31:39,662 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 1257 mSDsluCounter, 12494 mSDsCounter, 0 mSdLazyCounter, 8481 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 13291 SdHoareTripleChecker+Invalid, 10864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 8481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1819 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:31:39,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 13291 Invalid, 10864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [564 Valid, 8481 Invalid, 0 Unknown, 1819 Unchecked, 10.4s Time] [2022-10-16 12:31:39,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2022-10-16 12:31:39,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 1403. [2022-10-16 12:31:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1067 states have (on average 1.2624179943767573) internal successors, (1347), 1099 states have internal predecessors, (1347), 167 states have call successors, (167), 112 states have call predecessors, (167), 146 states have return successors, (237), 195 states have call predecessors, (237), 167 states have call successors, (237) [2022-10-16 12:31:39,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1751 transitions. [2022-10-16 12:31:39,987 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1751 transitions. Word has length 162 [2022-10-16 12:31:39,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:31:39,987 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 1751 transitions. [2022-10-16 12:31:39,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 34 states have (on average 5.588235294117647) internal successors, (190), 32 states have internal predecessors, (190), 14 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (31), 13 states have call predecessors, (31), 12 states have call successors, (31) [2022-10-16 12:31:39,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1751 transitions. [2022-10-16 12:31:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-10-16 12:31:39,991 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:31:39,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:31:40,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 12:31:40,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 12:31:40,205 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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)] === [2022-10-16 12:31:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:31:40,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1375118370, now seen corresponding path program 1 times [2022-10-16 12:31:40,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:31:40,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237467484] [2022-10-16 12:31:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:31:40,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:31:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:31:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 12:31:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 12:31:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:31:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:31:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:31:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:31:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:31:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 12:31:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:31:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 12:31:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:31:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:44,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:31:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:45,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 12:31:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 12:31:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:31:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:31:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 12:31:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:31:45,091 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-16 12:31:45,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:31:45,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237467484] [2022-10-16 12:31:45,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237467484] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:31:45,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722928197] [2022-10-16 12:31:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:31:45,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:31:45,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:31:45,094 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:31:45,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process