/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-linux-3.0/module_get_put-drivers-scsi-megaraid.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:56:18,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:56:18,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:56:18,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:56:18,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:56:18,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:56:18,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:56:18,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:56:18,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:56:18,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:56:18,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:56:18,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:56:18,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:56:18,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:56:18,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:56:18,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:56:18,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:56:18,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:56:18,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:56:18,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:56:18,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:56:18,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:56:18,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:56:18,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:56:18,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:56:18,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:56:18,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:56:18,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:56:18,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:56:18,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:56:18,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:56:18,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:56:18,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:56:18,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:56:18,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:56:18,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:56:18,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:56:18,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:56:18,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:56:18,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:56:18,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:56:18,213 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 12:56:18,271 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:56:18,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:56:18,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:56:18,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:56:18,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:56:18,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:56:18,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:56:18,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:56:18,279 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:56:18,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:56:18,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:56:18,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:56:18,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:56:18,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:56:18,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:56:18,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:56:18,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:56:18,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:56:18,282 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:56:18,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:56:18,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:56:18,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:56:18,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:56:18,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:56:18,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:56:18,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:56:18,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:56:18,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:56:18,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:56:18,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:56:18,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:56:18,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:56:18,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:56:18,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:56:18,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:56:18,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:56:18,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:56:18,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:56:18,763 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:56:18,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-scsi-megaraid.ko.cil.out.i [2022-10-16 12:56:18,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722600ec0/36e1414c38924aba875d23a07ebdc4ea/FLAG3603fa18e [2022-10-16 12:56:20,103 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:56:20,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-scsi-megaraid.ko.cil.out.i [2022-10-16 12:56:20,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722600ec0/36e1414c38924aba875d23a07ebdc4ea/FLAG3603fa18e [2022-10-16 12:56:20,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722600ec0/36e1414c38924aba875d23a07ebdc4ea [2022-10-16 12:56:20,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:56:20,377 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:56:20,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:56:20,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:56:20,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:56:20,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:56:20" (1/1) ... [2022-10-16 12:56:20,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f95bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:20, skipping insertion in model container [2022-10-16 12:56:20,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:56:20" (1/1) ... [2022-10-16 12:56:20,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:56:20,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:56:23,181 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-linux-3.0/module_get_put-drivers-scsi-megaraid.ko.cil.out.i[305833,305846] [2022-10-16 12:56:23,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:56:23,253 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:56:23,735 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-linux-3.0/module_get_put-drivers-scsi-megaraid.ko.cil.out.i[305833,305846] [2022-10-16 12:56:23,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:56:23,865 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:56:23,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23 WrapperNode [2022-10-16 12:56:23,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:56:23,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:56:23,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:56:23,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:56:23,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:23,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,346 INFO L138 Inliner]: procedures = 260, calls = 2760, calls flagged for inlining = 130, calls inlined = 122, statements flattened = 6124 [2022-10-16 12:56:24,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:56:24,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:56:24,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:56:24,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:56:24,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:56:24,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:56:24,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:56:24,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:56:24,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (1/1) ... [2022-10-16 12:56:24,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:56:24,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:56:24,881 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 12:56:24,903 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 12:56:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-16 12:56:24,959 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-16 12:56:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_queue_lck [2022-10-16 12:56:24,960 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_queue_lck [2022-10-16 12:56:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:56:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:56:24,960 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-16 12:56:24,960 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-16 12:56:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure free_local_pdev [2022-10-16 12:56:24,961 INFO L138 BoogieDeclarations]: Found implementation of procedure free_local_pdev [2022-10-16 12:56:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:56:24,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:56:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-10-16 12:56:24,962 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-10-16 12:56:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-16 12:56:24,962 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-16 12:56:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure mega_build_sglist [2022-10-16 12:56:24,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_build_sglist [2022-10-16 12:56:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-16 12:56:24,963 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-16 12:56:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:56:24,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:56:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure __megaraid_shutdown [2022-10-16 12:56:24,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __megaraid_shutdown [2022-10-16 12:56:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-16 12:56:24,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-16 12:56:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-16 12:56:24,964 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-16 12:56:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-10-16 12:56:24,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-10-16 12:56:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-16 12:56:24,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-16 12:56:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 12:56:24,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 12:56:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sglist [2022-10-16 12:56:24,965 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sglist [2022-10-16 12:56:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-10-16 12:56:24,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-10-16 12:56:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 12:56:24,966 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 12:56:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:56:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 12:56:24,967 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 12:56:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-10-16 12:56:24,967 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-10-16 12:56:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 12:56:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure mega_free_scb [2022-10-16 12:56:24,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_free_scb [2022-10-16 12:56:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:56:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-10-16 12:56:24,968 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-10-16 12:56:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-10-16 12:56:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-10-16 12:56:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_abort_and_reset [2022-10-16 12:56:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_abort_and_reset [2022-10-16 12:56:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 12:56:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 12:56:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-16 12:56:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-16 12:56:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:56:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-10-16 12:56:24,972 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-10-16 12:56:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:56:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 12:56:24,973 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 12:56:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure mega_cmd_done [2022-10-16 12:56:24,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_cmd_done [2022-10-16 12:56:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 12:56:24,974 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 12:56:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-16 12:56:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-16 12:56:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 12:56:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 12:56:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-16 12:56:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-16 12:56:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure issue_scb_block [2022-10-16 12:56:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_scb_block [2022-10-16 12:56:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:56:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 12:56:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 12:56:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure mega_allocate_scb [2022-10-16 12:56:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_allocate_scb [2022-10-16 12:56:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-16 12:56:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-16 12:56:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure mega_free_sgl [2022-10-16 12:56:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_free_sgl [2022-10-16 12:56:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-10-16 12:56:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-10-16 12:56:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-16 12:56:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-16 12:56:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:56:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure make_local_pdev [2022-10-16 12:56:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure make_local_pdev [2022-10-16 12:56:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:56:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-16 12:56:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-16 12:56:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 12:56:24,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 12:56:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-10-16 12:56:24,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-10-16 12:56:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure mega_runpendq [2022-10-16 12:56:24,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_runpendq [2022-10-16 12:56:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-16 12:56:24,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-16 12:56:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:56:24,985 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:56:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-16 12:56:24,985 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-16 12:56:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-16 12:56:24,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-16 12:56:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:56:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-16 12:56:24,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-16 12:56:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-16 12:56:24,986 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-16 12:56:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:56:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-10-16 12:56:24,987 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-10-16 12:56:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 12:56:24,987 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 12:56:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-16 12:56:24,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-16 12:56:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:56:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-16 12:56:24,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-16 12:56:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure mega_n_to_m [2022-10-16 12:56:24,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_n_to_m [2022-10-16 12:56:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:56:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 12:56:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 12:56:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 12:56:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure mega_internal_command [2022-10-16 12:56:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_internal_command [2022-10-16 12:56:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-10-16 12:56:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-10-16 12:56:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-10-16 12:56:25,001 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-10-16 12:56:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure megaraid_shutdown [2022-10-16 12:56:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure megaraid_shutdown [2022-10-16 12:56:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure mega_rundoneq [2022-10-16 12:56:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mega_rundoneq [2022-10-16 12:56:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-16 12:56:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-16 12:56:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure create_proc_read_entry [2022-10-16 12:56:25,003 INFO L138 BoogieDeclarations]: Found implementation of procedure create_proc_read_entry [2022-10-16 12:56:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-10-16 12:56:25,003 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-10-16 12:56:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-10-16 12:56:25,003 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-10-16 12:56:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-10-16 12:56:25,003 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-10-16 12:56:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:56:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-10-16 12:56:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-10-16 12:56:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:56:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:56:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-10-16 12:56:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-10-16 12:56:25,971 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:56:25,978 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:56:26,238 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:26,250 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:26,252 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:27,377 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2022-10-16 12:56:27,377 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2022-10-16 12:56:27,377 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5970: mega_build_cmd_#res#1.base, mega_build_cmd_#res#1.offset := 0, 0;call ULTIMATE.dealloc(mega_build_cmd_~#seg~0#1.base, mega_build_cmd_~#seg~0#1.offset);havoc mega_build_cmd_~#seg~0#1.base, mega_build_cmd_~#seg~0#1.offset; [2022-10-16 12:56:27,377 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##148: assume !false; [2022-10-16 12:56:27,378 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume false; [2022-10-16 12:56:27,378 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-10-16 12:56:27,378 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-10-16 12:56:27,406 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:27,407 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:27,407 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:27,408 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:27,513 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-10-16 12:56:27,513 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-10-16 12:56:27,513 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2022-10-16 12:56:27,513 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2022-10-16 12:56:27,513 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2022-10-16 12:56:27,513 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2022-10-16 12:56:27,514 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2022-10-16 12:56:27,514 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2022-10-16 12:56:27,514 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-10-16 12:56:27,514 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-10-16 12:56:27,514 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2022-10-16 12:56:27,514 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2022-10-16 12:56:28,338 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-10-16 12:56:28,338 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-10-16 12:56:28,339 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:28,358 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-10-16 12:56:28,358 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-10-16 12:56:28,570 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:28,649 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-10-16 12:56:28,650 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-10-16 12:56:28,768 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:28,964 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume !false; [2022-10-16 12:56:28,964 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume false; [2022-10-16 12:56:29,028 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:29,132 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-10-16 12:56:29,132 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-10-16 12:56:29,217 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:29,219 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:29,220 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:29,222 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-16 12:56:32,306 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false; [2022-10-16 12:56:32,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2022-10-16 12:56:32,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2022-10-16 12:56:32,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2022-10-16 12:56:32,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-10-16 12:56:32,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-10-16 12:56:32,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume false; [2022-10-16 12:56:32,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume !false; [2022-10-16 12:56:32,308 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume !false; [2022-10-16 12:56:32,308 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume false; [2022-10-16 12:56:32,308 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##119: assume !false; [2022-10-16 12:56:32,308 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##118: assume false; [2022-10-16 12:56:32,451 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:56:32,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:56:32,485 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-10-16 12:56:32,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:56:32 BoogieIcfgContainer [2022-10-16 12:56:32,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:56:32,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:56:32,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:56:32,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:56:32,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:56:20" (1/3) ... [2022-10-16 12:56:32,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44be17b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:56:32, skipping insertion in model container [2022-10-16 12:56:32,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:56:23" (2/3) ... [2022-10-16 12:56:32,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44be17b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:56:32, skipping insertion in model container [2022-10-16 12:56:32,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:56:32" (3/3) ... [2022-10-16 12:56:32,502 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-scsi-megaraid.ko.cil.out.i [2022-10-16 12:56:32,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:56:32,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2022-10-16 12:56:32,692 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:56:32,704 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;@24ba8b11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:56:32,705 INFO L358 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2022-10-16 12:56:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 1782 states, 1272 states have (on average 1.3922955974842768) internal successors, (1771), 1385 states have internal predecessors, (1771), 351 states have call successors, (351), 70 states have call predecessors, (351), 70 states have return successors, (351), 348 states have call predecessors, (351), 351 states have call successors, (351) [2022-10-16 12:56:32,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 12:56:32,766 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:32,768 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, 1, 1, 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 12:56:32,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting issue_scb_blockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:56:32,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:32,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1668145231, now seen corresponding path program 1 times [2022-10-16 12:56:32,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:32,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770297005] [2022-10-16 12:56:32,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:32,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:33,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:56:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:56:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:56:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 12:56:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 12:56:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:56:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:34,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:56:34,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:34,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770297005] [2022-10-16 12:56:34,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770297005] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:34,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:56:34,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:56:34,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181811932] [2022-10-16 12:56:34,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:34,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:56:34,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:34,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:56:34,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:56:34,259 INFO L87 Difference]: Start difference. First operand has 1782 states, 1272 states have (on average 1.3922955974842768) internal successors, (1771), 1385 states have internal predecessors, (1771), 351 states have call successors, (351), 70 states have call predecessors, (351), 70 states have return successors, (351), 348 states have call predecessors, (351), 351 states have call successors, (351) Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 12:56:42,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:56:43,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:43,301 INFO L93 Difference]: Finished difference Result 3785 states and 5503 transitions. [2022-10-16 12:56:43,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:56:43,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2022-10-16 12:56:43,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:43,375 INFO L225 Difference]: With dead ends: 3785 [2022-10-16 12:56:43,376 INFO L226 Difference]: Without dead ends: 2003 [2022-10-16 12:56:43,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:56:43,410 INFO L413 NwaCegarLoop]: 2370 mSDtfsCounter, 1139 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 921 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 5924 SdHoareTripleChecker+Invalid, 3505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 921 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:43,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 5924 Invalid, 3505 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [921 Valid, 2583 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-10-16 12:56:43,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2022-10-16 12:56:43,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1752. [2022-10-16 12:56:43,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1261 states have (on average 1.3505154639175259) internal successors, (1703), 1356 states have internal predecessors, (1703), 350 states have call successors, (350), 69 states have call predecessors, (350), 69 states have return successors, (350), 347 states have call predecessors, (350), 350 states have call successors, (350) [2022-10-16 12:56:43,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2403 transitions. [2022-10-16 12:56:43,740 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2403 transitions. Word has length 78 [2022-10-16 12:56:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:43,742 INFO L495 AbstractCegarLoop]: Abstraction has 1752 states and 2403 transitions. [2022-10-16 12:56:43,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 12:56:43,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2403 transitions. [2022-10-16 12:56:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 12:56:43,755 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:43,756 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:56:43,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:56:43,757 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting issue_scb_blockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:56:43,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash 2014401276, now seen corresponding path program 1 times [2022-10-16 12:56:43,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:43,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353636425] [2022-10-16 12:56:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:43,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:56:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:56:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:56:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 12:56:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 12:56:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:56:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 12:56:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 12:56:44,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:44,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353636425] [2022-10-16 12:56:44,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353636425] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:44,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:56:44,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:56:44,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587369946] [2022-10-16 12:56:44,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:44,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:56:44,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:44,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:56:44,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:56:44,508 INFO L87 Difference]: Start difference. First operand 1752 states and 2403 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:56:51,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:51,348 INFO L93 Difference]: Finished difference Result 2003 states and 2927 transitions. [2022-10-16 12:56:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:56:51,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2022-10-16 12:56:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:51,368 INFO L225 Difference]: With dead ends: 2003 [2022-10-16 12:56:51,369 INFO L226 Difference]: Without dead ends: 2002 [2022-10-16 12:56:51,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:56:51,373 INFO L413 NwaCegarLoop]: 2316 mSDtfsCounter, 1137 mSDsluCounter, 3509 mSDsCounter, 0 mSdLazyCounter, 2534 mSolverCounterSat, 926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 5825 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 926 IncrementalHoareTripleChecker+Valid, 2534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:51,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 5825 Invalid, 3460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [926 Valid, 2534 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-10-16 12:56:51,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-10-16 12:56:51,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1751. [2022-10-16 12:56:51,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1261 states have (on average 1.3497224425059478) internal successors, (1702), 1355 states have internal predecessors, (1702), 350 states have call successors, (350), 69 states have call predecessors, (350), 69 states have return successors, (350), 347 states have call predecessors, (350), 350 states have call successors, (350) [2022-10-16 12:56:51,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2402 transitions. [2022-10-16 12:56:51,474 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2402 transitions. Word has length 90 [2022-10-16 12:56:51,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:51,475 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2402 transitions. [2022-10-16 12:56:51,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-16 12:56:51,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2402 transitions. [2022-10-16 12:56:51,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 12:56:51,480 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:51,480 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 12:56:51,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:56:51,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting issue_scb_blockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:56:51,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:51,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1978068143, now seen corresponding path program 1 times [2022-10-16 12:56:51,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:51,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077569415] [2022-10-16 12:56:51,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:51,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:51,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:56:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:56:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:56:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 12:56:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 12:56:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:56:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 12:56:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:56:52,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:52,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077569415] [2022-10-16 12:56:52,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077569415] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:56:52,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9014150] [2022-10-16 12:56:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:52,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:56:52,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:56:52,095 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 12:56:52,117 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 12:56:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:52,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:56:52,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:56:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:56:52,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:56:52,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9014150] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:52,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:56:52,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 12:56:52,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633193855] [2022-10-16 12:56:52,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:52,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:56:52,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:52,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:56:52,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:56:52,987 INFO L87 Difference]: Start difference. First operand 1751 states and 2402 transitions. Second operand has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 12:56:53,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:56:53,144 INFO L93 Difference]: Finished difference Result 1862 states and 2589 transitions. [2022-10-16 12:56:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:56:53,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 91 [2022-10-16 12:56:53,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:56:53,161 INFO L225 Difference]: With dead ends: 1862 [2022-10-16 12:56:53,162 INFO L226 Difference]: Without dead ends: 1861 [2022-10-16 12:56:53,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:56:53,166 INFO L413 NwaCegarLoop]: 2509 mSDtfsCounter, 127 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 4983 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:56:53,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 4983 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:56:53,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2022-10-16 12:56:53,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1742. [2022-10-16 12:56:53,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1254 states have (on average 1.3500797448165869) internal successors, (1693), 1347 states have internal predecessors, (1693), 349 states have call successors, (349), 69 states have call predecessors, (349), 69 states have return successors, (349), 346 states have call predecessors, (349), 349 states have call successors, (349) [2022-10-16 12:56:53,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2391 transitions. [2022-10-16 12:56:53,266 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2391 transitions. Word has length 91 [2022-10-16 12:56:53,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:56:53,267 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2391 transitions. [2022-10-16 12:56:53,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 12:56:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2391 transitions. [2022-10-16 12:56:53,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 12:56:53,272 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:56:53,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:53,323 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 12:56:53,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:56:53,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mega_cmd_doneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:56:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:56:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1699082228, now seen corresponding path program 1 times [2022-10-16 12:56:53,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:56:53,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86338484] [2022-10-16 12:56:53,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:56:53,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:56:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:56:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:56:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:56:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:56:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:56:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:56:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:56:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 12:56:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:56:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:56:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 12:56:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:56:53,994 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 12:56:53,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:56:53,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86338484] [2022-10-16 12:56:53,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86338484] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:56:53,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:56:53,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:56:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953025323] [2022-10-16 12:56:53,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:56:54,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:56:54,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:56:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:56:54,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:56:54,001 INFO L87 Difference]: Start difference. First operand 1742 states and 2391 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:57:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:00,723 INFO L93 Difference]: Finished difference Result 2002 states and 2919 transitions. [2022-10-16 12:57:00,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:57:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2022-10-16 12:57:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:00,747 INFO L225 Difference]: With dead ends: 2002 [2022-10-16 12:57:00,748 INFO L226 Difference]: Without dead ends: 2000 [2022-10-16 12:57:00,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:57:00,751 INFO L413 NwaCegarLoop]: 2284 mSDtfsCounter, 1207 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 5801 SdHoareTripleChecker+Invalid, 3436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:00,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 5801 Invalid, 3436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [945 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-10-16 12:57:00,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2022-10-16 12:57:00,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1806. [2022-10-16 12:57:00,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1303 states have (on average 1.355333844973139) internal successors, (1766), 1400 states have internal predecessors, (1766), 364 states have call successors, (364), 69 states have call predecessors, (364), 69 states have return successors, (364), 359 states have call predecessors, (364), 364 states have call successors, (364) [2022-10-16 12:57:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2494 transitions. [2022-10-16 12:57:00,852 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2494 transitions. Word has length 96 [2022-10-16 12:57:00,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:00,853 INFO L495 AbstractCegarLoop]: Abstraction has 1806 states and 2494 transitions. [2022-10-16 12:57:00,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:57:00,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2494 transitions. [2022-10-16 12:57:00,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 12:57:00,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:00,858 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] [2022-10-16 12:57:00,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:57:00,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mega_cmd_doneErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:00,859 INFO L85 PathProgramCache]: Analyzing trace with hash 405246950, now seen corresponding path program 1 times [2022-10-16 12:57:00,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:00,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736747304] [2022-10-16 12:57:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:57:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:57:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:57:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:57:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 12:57:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 12:57:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:57:01,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:01,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736747304] [2022-10-16 12:57:01,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736747304] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:01,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184167549] [2022-10-16 12:57:01,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:01,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:01,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:01,354 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 12:57:01,373 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 12:57:02,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:02,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:57:02,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:57:02,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:57:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:57:02,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184167549] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:57:02,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:57:02,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-16 12:57:02,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393098833] [2022-10-16 12:57:02,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:57:02,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 12:57:02,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:02,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 12:57:02,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:57:02,229 INFO L87 Difference]: Start difference. First operand 1806 states and 2494 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:57:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:10,780 INFO L93 Difference]: Finished difference Result 2281 states and 3385 transitions. [2022-10-16 12:57:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 12:57:10,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2022-10-16 12:57:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:10,800 INFO L225 Difference]: With dead ends: 2281 [2022-10-16 12:57:10,801 INFO L226 Difference]: Without dead ends: 2280 [2022-10-16 12:57:10,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=246, Unknown=0, NotChecked=0, Total=380 [2022-10-16 12:57:10,804 INFO L413 NwaCegarLoop]: 2283 mSDtfsCounter, 1935 mSDsluCounter, 5058 mSDsCounter, 0 mSdLazyCounter, 3805 mSolverCounterSat, 1279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 7341 SdHoareTripleChecker+Invalid, 5084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1279 IncrementalHoareTripleChecker+Valid, 3805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:10,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 7341 Invalid, 5084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1279 Valid, 3805 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-10-16 12:57:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2022-10-16 12:57:10,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1997. [2022-10-16 12:57:10,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1449 states have (on average 1.370600414078675) internal successors, (1986), 1558 states have internal predecessors, (1986), 409 states have call successors, (409), 69 states have call predecessors, (409), 69 states have return successors, (409), 398 states have call predecessors, (409), 409 states have call successors, (409) [2022-10-16 12:57:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2804 transitions. [2022-10-16 12:57:10,929 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2804 transitions. Word has length 102 [2022-10-16 12:57:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:10,929 INFO L495 AbstractCegarLoop]: Abstraction has 1997 states and 2804 transitions. [2022-10-16 12:57:10,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 1 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:57:10,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2804 transitions. [2022-10-16 12:57:10,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 12:57:10,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:10,934 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] [2022-10-16 12:57:10,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 12:57:11,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:11,149 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mega_cmd_doneErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:11,150 INFO L85 PathProgramCache]: Analyzing trace with hash -322244824, now seen corresponding path program 1 times [2022-10-16 12:57:11,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:11,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590134221] [2022-10-16 12:57:11,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:11,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:57:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:57:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:57:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:57:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 12:57:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 12:57:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:57:11,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:11,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590134221] [2022-10-16 12:57:11,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590134221] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:11,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34308647] [2022-10-16 12:57:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:11,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:11,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:11,627 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 12:57:11,636 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 12:57:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:12,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 2436 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:57:12,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:57:12,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:57:12,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34308647] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:12,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:57:12,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 12:57:12,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304461458] [2022-10-16 12:57:12,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:12,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:57:12,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:12,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:57:12,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:57:12,459 INFO L87 Difference]: Start difference. First operand 1997 states and 2804 transitions. Second operand has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:57:12,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:12,669 INFO L93 Difference]: Finished difference Result 1999 states and 2807 transitions. [2022-10-16 12:57:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:57:12,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2022-10-16 12:57:12,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:12,684 INFO L225 Difference]: With dead ends: 1999 [2022-10-16 12:57:12,685 INFO L226 Difference]: Without dead ends: 1998 [2022-10-16 12:57:12,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:57:12,689 INFO L413 NwaCegarLoop]: 2472 mSDtfsCounter, 147 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 4853 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:12,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 4853 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:57:12,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2022-10-16 12:57:12,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1996. [2022-10-16 12:57:12,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1449 states have (on average 1.3685300207039337) internal successors, (1983), 1557 states have internal predecessors, (1983), 409 states have call successors, (409), 69 states have call predecessors, (409), 69 states have return successors, (409), 398 states have call predecessors, (409), 409 states have call successors, (409) [2022-10-16 12:57:12,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2801 transitions. [2022-10-16 12:57:12,809 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2801 transitions. Word has length 103 [2022-10-16 12:57:12,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:12,809 INFO L495 AbstractCegarLoop]: Abstraction has 1996 states and 2801 transitions. [2022-10-16 12:57:12,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:57:12,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2801 transitions. [2022-10-16 12:57:12,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 12:57:12,815 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:12,815 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 12:57:12,860 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 12:57:13,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:13,030 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:13,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -409629107, now seen corresponding path program 1 times [2022-10-16 12:57:13,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:13,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769857724] [2022-10-16 12:57:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:13,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:57:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:57:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:57:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:57:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 12:57:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:57:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:57:13,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:13,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769857724] [2022-10-16 12:57:13,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769857724] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:13,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:57:13,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:57:13,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950059539] [2022-10-16 12:57:13,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:13,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:57:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:13,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:57:13,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:57:13,768 INFO L87 Difference]: Start difference. First operand 1996 states and 2801 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:57:20,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:57:20,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:20,605 INFO L93 Difference]: Finished difference Result 4255 states and 6146 transitions. [2022-10-16 12:57:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:57:20,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2022-10-16 12:57:20,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:20,623 INFO L225 Difference]: With dead ends: 4255 [2022-10-16 12:57:20,623 INFO L226 Difference]: Without dead ends: 2264 [2022-10-16 12:57:20,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:57:20,635 INFO L413 NwaCegarLoop]: 2277 mSDtfsCounter, 3173 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 1194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3507 SdHoareTripleChecker+Valid, 4209 SdHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1194 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:20,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3507 Valid, 4209 Invalid, 2785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1194 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-10-16 12:57:20,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2022-10-16 12:57:20,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 1996. [2022-10-16 12:57:20,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1449 states have (on average 1.3671497584541064) internal successors, (1981), 1557 states have internal predecessors, (1981), 409 states have call successors, (409), 69 states have call predecessors, (409), 69 states have return successors, (409), 398 states have call predecessors, (409), 409 states have call successors, (409) [2022-10-16 12:57:20,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2799 transitions. [2022-10-16 12:57:20,765 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2799 transitions. Word has length 106 [2022-10-16 12:57:20,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:20,766 INFO L495 AbstractCegarLoop]: Abstraction has 1996 states and 2799 transitions. [2022-10-16 12:57:20,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:57:20,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2799 transitions. [2022-10-16 12:57:20,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 12:57:20,771 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:20,771 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 12:57:20,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:57:20,771 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:20,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:20,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2057763358, now seen corresponding path program 1 times [2022-10-16 12:57:20,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:20,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620781579] [2022-10-16 12:57:20,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:20,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:57:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:57:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:57:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 12:57:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:57:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:57:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 12:57:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:57:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 12:57:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:21,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:57:21,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:21,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620781579] [2022-10-16 12:57:21,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620781579] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:21,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:57:21,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:57:21,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544348276] [2022-10-16 12:57:21,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:21,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:57:21,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:21,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:57:21,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:57:21,461 INFO L87 Difference]: Start difference. First operand 1996 states and 2799 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:57:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:27,150 INFO L93 Difference]: Finished difference Result 4254 states and 6142 transitions. [2022-10-16 12:57:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:57:27,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-10-16 12:57:27,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:27,168 INFO L225 Difference]: With dead ends: 4254 [2022-10-16 12:57:27,169 INFO L226 Difference]: Without dead ends: 2264 [2022-10-16 12:57:27,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:57:27,187 INFO L413 NwaCegarLoop]: 2267 mSDtfsCounter, 3179 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 1200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3514 SdHoareTripleChecker+Valid, 4198 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1200 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:27,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3514 Valid, 4198 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1200 Valid, 1578 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-10-16 12:57:27,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2022-10-16 12:57:27,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 1996. [2022-10-16 12:57:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1449 states have (on average 1.3664596273291925) internal successors, (1980), 1557 states have internal predecessors, (1980), 409 states have call successors, (409), 69 states have call predecessors, (409), 69 states have return successors, (409), 398 states have call predecessors, (409), 409 states have call successors, (409) [2022-10-16 12:57:27,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2798 transitions. [2022-10-16 12:57:27,381 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2798 transitions. Word has length 107 [2022-10-16 12:57:27,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:27,381 INFO L495 AbstractCegarLoop]: Abstraction has 1996 states and 2798 transitions. [2022-10-16 12:57:27,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:57:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2798 transitions. [2022-10-16 12:57:27,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 12:57:27,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:27,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 12:57:27,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:57:27,388 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:27,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:27,389 INFO L85 PathProgramCache]: Analyzing trace with hash 370495264, now seen corresponding path program 1 times [2022-10-16 12:57:27,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:27,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005712817] [2022-10-16 12:57:27,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:27,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:28,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 12:57:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:28,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 12:57:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 12:57:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:28,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 12:57:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:28,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:57:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:57:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:29,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 12:57:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:29,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:57:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:29,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 12:57:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 12:57:29,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:29,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005712817] [2022-10-16 12:57:29,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005712817] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:29,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046005055] [2022-10-16 12:57:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:29,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:29,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:29,050 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 12:57:29,074 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 12:57:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:29,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 12:57:29,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 12:57:29,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:57:29,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046005055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:29,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:57:29,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-10-16 12:57:29,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386451023] [2022-10-16 12:57:29,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:29,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:57:29,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:29,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:57:29,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:57:29,994 INFO L87 Difference]: Start difference. First operand 1996 states and 2798 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 12:57:30,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:30,173 INFO L93 Difference]: Finished difference Result 3974 states and 5573 transitions. [2022-10-16 12:57:30,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:57:30,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2022-10-16 12:57:30,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:30,190 INFO L225 Difference]: With dead ends: 3974 [2022-10-16 12:57:30,191 INFO L226 Difference]: Without dead ends: 1994 [2022-10-16 12:57:30,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-10-16 12:57:30,209 INFO L413 NwaCegarLoop]: 2385 mSDtfsCounter, 3 mSDsluCounter, 7144 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9529 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:30,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 9529 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:57:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2022-10-16 12:57:30,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1994. [2022-10-16 12:57:30,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1994 states, 1448 states have (on average 1.3660220994475138) internal successors, (1978), 1556 states have internal predecessors, (1978), 408 states have call successors, (408), 69 states have call predecessors, (408), 69 states have return successors, (408), 397 states have call predecessors, (408), 408 states have call successors, (408) [2022-10-16 12:57:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1994 states to 1994 states and 2794 transitions. [2022-10-16 12:57:30,372 INFO L78 Accepts]: Start accepts. Automaton has 1994 states and 2794 transitions. Word has length 107 [2022-10-16 12:57:30,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:30,372 INFO L495 AbstractCegarLoop]: Abstraction has 1994 states and 2794 transitions. [2022-10-16 12:57:30,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 12:57:30,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1994 states and 2794 transitions. [2022-10-16 12:57:30,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 12:57:30,377 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:30,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 12:57:30,427 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 12:57:30,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:30,592 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash 53402052, now seen corresponding path program 1 times [2022-10-16 12:57:30,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:30,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896001366] [2022-10-16 12:57:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:31,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:57:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:57:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 12:57:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:57:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 12:57:32,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:32,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896001366] [2022-10-16 12:57:32,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896001366] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:32,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096994300] [2022-10-16 12:57:32,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:32,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:32,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:32,085 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 12:57:32,107 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 12:57:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:33,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 3052 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:57:33,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:33,125 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 39 treesize of output 31 [2022-10-16 12:57:33,147 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 31 treesize of output 23 [2022-10-16 12:57:33,152 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 23 treesize of output 11 [2022-10-16 12:57:33,176 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 42 treesize of output 34 [2022-10-16 12:57:33,183 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 34 treesize of output 26 [2022-10-16 12:57:33,188 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 26 treesize of output 14 [2022-10-16 12:57:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:57:33,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:57:33,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096994300] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:33,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:57:33,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2022-10-16 12:57:33,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137608236] [2022-10-16 12:57:33,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:33,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:57:33,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:33,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:57:33,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:57:33,211 INFO L87 Difference]: Start difference. First operand 1994 states and 2794 transitions. Second operand has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:57:33,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:33,419 INFO L93 Difference]: Finished difference Result 2162 states and 3038 transitions. [2022-10-16 12:57:33,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:57:33,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2022-10-16 12:57:33,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:33,436 INFO L225 Difference]: With dead ends: 2162 [2022-10-16 12:57:33,436 INFO L226 Difference]: Without dead ends: 2161 [2022-10-16 12:57:33,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:57:33,439 INFO L413 NwaCegarLoop]: 2542 mSDtfsCounter, 232 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 4889 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:33,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 4889 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:57:33,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2022-10-16 12:57:33,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1993. [2022-10-16 12:57:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1448 states have (on average 1.3653314917127073) internal successors, (1977), 1555 states have internal predecessors, (1977), 408 states have call successors, (408), 69 states have call predecessors, (408), 69 states have return successors, (408), 397 states have call predecessors, (408), 408 states have call successors, (408) [2022-10-16 12:57:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2793 transitions. [2022-10-16 12:57:33,665 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2793 transitions. Word has length 106 [2022-10-16 12:57:33,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:33,665 INFO L495 AbstractCegarLoop]: Abstraction has 1993 states and 2793 transitions. [2022-10-16 12:57:33,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 12:57:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2793 transitions. [2022-10-16 12:57:33,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 12:57:33,670 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:33,671 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 12:57:33,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 12:57:33,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 12:57:33,885 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:33,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:33,886 INFO L85 PathProgramCache]: Analyzing trace with hash 53402245, now seen corresponding path program 1 times [2022-10-16 12:57:33,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:33,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063403565] [2022-10-16 12:57:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:33,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:57:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:57:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 12:57:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:57:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:35,300 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 12:57:35,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:35,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063403565] [2022-10-16 12:57:35,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063403565] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:35,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422457124] [2022-10-16 12:57:35,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:35,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:35,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:35,303 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 12:57:35,323 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 12:57:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:36,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 3052 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 12:57:36,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:57:36,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:57:36,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422457124] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:36,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:57:36,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-10-16 12:57:36,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215708710] [2022-10-16 12:57:36,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:36,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:57:36,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:36,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:57:36,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:57:36,421 INFO L87 Difference]: Start difference. First operand 1993 states and 2793 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:57:36,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:36,556 INFO L93 Difference]: Finished difference Result 3968 states and 5571 transitions. [2022-10-16 12:57:36,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:57:36,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2022-10-16 12:57:36,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:36,571 INFO L225 Difference]: With dead ends: 3968 [2022-10-16 12:57:36,572 INFO L226 Difference]: Without dead ends: 1993 [2022-10-16 12:57:36,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:57:36,583 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 16 mSDsluCounter, 2359 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:36,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 4740 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:57:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-10-16 12:57:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1991. [2022-10-16 12:57:36,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1447 states have (on average 1.3648928818244643) internal successors, (1975), 1554 states have internal predecessors, (1975), 407 states have call successors, (407), 69 states have call predecessors, (407), 69 states have return successors, (407), 396 states have call predecessors, (407), 407 states have call successors, (407) [2022-10-16 12:57:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2789 transitions. [2022-10-16 12:57:36,812 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2789 transitions. Word has length 106 [2022-10-16 12:57:36,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:36,812 INFO L495 AbstractCegarLoop]: Abstraction has 1991 states and 2789 transitions. [2022-10-16 12:57:36,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:57:36,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2789 transitions. [2022-10-16 12:57:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 12:57:36,818 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:36,818 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 12:57:36,867 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 12:57:37,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:37,032 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:37,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:37,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2034947269, now seen corresponding path program 1 times [2022-10-16 12:57:37,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:37,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090373238] [2022-10-16 12:57:37,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:37,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:57:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:57:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 12:57:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:57:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:38,495 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 12:57:38,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:38,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090373238] [2022-10-16 12:57:38,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090373238] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:38,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305671863] [2022-10-16 12:57:38,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:38,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:38,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:38,498 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 12:57:38,518 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 12:57:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:39,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 3052 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 12:57:39,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:57:39,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:57:39,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305671863] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:39,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:57:39,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2022-10-16 12:57:39,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627164254] [2022-10-16 12:57:39,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:39,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:57:39,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:39,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:57:39,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:57:39,755 INFO L87 Difference]: Start difference. First operand 1991 states and 2789 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:57:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:40,329 INFO L93 Difference]: Finished difference Result 3971 states and 5581 transitions. [2022-10-16 12:57:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:57:40,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2022-10-16 12:57:40,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:40,355 INFO L225 Difference]: With dead ends: 3971 [2022-10-16 12:57:40,356 INFO L226 Difference]: Without dead ends: 1998 [2022-10-16 12:57:40,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:57:40,367 INFO L413 NwaCegarLoop]: 2377 mSDtfsCounter, 5 mSDsluCounter, 9487 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11864 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:40,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11864 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:57:40,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2022-10-16 12:57:40,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1996. [2022-10-16 12:57:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1451 states have (on average 1.3638869745003446) internal successors, (1979), 1558 states have internal predecessors, (1979), 407 states have call successors, (407), 69 states have call predecessors, (407), 70 states have return successors, (417), 397 states have call predecessors, (417), 407 states have call successors, (417) [2022-10-16 12:57:40,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2803 transitions. [2022-10-16 12:57:40,514 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2803 transitions. Word has length 106 [2022-10-16 12:57:40,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:40,514 INFO L495 AbstractCegarLoop]: Abstraction has 1996 states and 2803 transitions. [2022-10-16 12:57:40,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:57:40,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2803 transitions. [2022-10-16 12:57:40,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 12:57:40,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:40,520 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-10-16 12:57:40,566 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 12:57:40,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:40,734 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:40,735 INFO L85 PathProgramCache]: Analyzing trace with hash -478520092, now seen corresponding path program 1 times [2022-10-16 12:57:40,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:40,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813820358] [2022-10-16 12:57:40,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:40,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:57:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:57:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 12:57:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 12:57:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 12:57:42,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:42,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813820358] [2022-10-16 12:57:42,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813820358] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:42,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893364823] [2022-10-16 12:57:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:42,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:42,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:42,136 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 12:57:42,155 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 12:57:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:43,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 3061 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 12:57:43,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:57:43,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:57:43,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893364823] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:43,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:57:43,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-10-16 12:57:43,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924887899] [2022-10-16 12:57:43,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:43,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:57:43,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:43,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:57:43,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:57:43,466 INFO L87 Difference]: Start difference. First operand 1996 states and 2803 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 12:57:43,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:43,995 INFO L93 Difference]: Finished difference Result 3980 states and 5719 transitions. [2022-10-16 12:57:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:57:43,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2022-10-16 12:57:43,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:44,010 INFO L225 Difference]: With dead ends: 3980 [2022-10-16 12:57:44,010 INFO L226 Difference]: Without dead ends: 2002 [2022-10-16 12:57:44,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:57:44,023 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 18 mSDsluCounter, 7009 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 9362 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:44,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 9362 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:57:44,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-10-16 12:57:44,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 2000. [2022-10-16 12:57:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1454 states have (on average 1.3638239339752407) internal successors, (1983), 1562 states have internal predecessors, (1983), 407 states have call successors, (407), 69 states have call predecessors, (407), 71 states have return successors, (458), 397 states have call predecessors, (458), 407 states have call successors, (458) [2022-10-16 12:57:44,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2848 transitions. [2022-10-16 12:57:44,165 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2848 transitions. Word has length 106 [2022-10-16 12:57:44,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:44,166 INFO L495 AbstractCegarLoop]: Abstraction has 2000 states and 2848 transitions. [2022-10-16 12:57:44,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 12:57:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2848 transitions. [2022-10-16 12:57:44,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 12:57:44,171 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:44,171 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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 12:57:44,217 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 12:57:44,386 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,SelfDestructingSolverStorable12 [2022-10-16 12:57:44,387 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:44,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:44,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1690981103, now seen corresponding path program 1 times [2022-10-16 12:57:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:44,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307359148] [2022-10-16 12:57:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:44,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:57:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:57:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:57:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 12:57:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 12:57:45,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:45,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307359148] [2022-10-16 12:57:45,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307359148] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:45,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880465503] [2022-10-16 12:57:45,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:45,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:45,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:45,840 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 12:57:45,863 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 12:57:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:47,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 12:57:47,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:47,081 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:57:47,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:57:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:57:47,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880465503] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:47,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 12:57:47,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9, 5] total 13 [2022-10-16 12:57:47,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826962861] [2022-10-16 12:57:47,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:47,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:57:47,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:57:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:57:47,165 INFO L87 Difference]: Start difference. First operand 2000 states and 2848 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:57:47,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:47,526 INFO L93 Difference]: Finished difference Result 3983 states and 5759 transitions. [2022-10-16 12:57:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:57:47,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2022-10-16 12:57:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:47,537 INFO L225 Difference]: With dead ends: 3983 [2022-10-16 12:57:47,537 INFO L226 Difference]: Without dead ends: 2001 [2022-10-16 12:57:47,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-10-16 12:57:47,550 INFO L413 NwaCegarLoop]: 2376 mSDtfsCounter, 4 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4723 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:47,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4723 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:57:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2022-10-16 12:57:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 2001. [2022-10-16 12:57:47,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1455 states have (on average 1.363573883161512) internal successors, (1984), 1563 states have internal predecessors, (1984), 407 states have call successors, (407), 69 states have call predecessors, (407), 71 states have return successors, (458), 397 states have call predecessors, (458), 407 states have call successors, (458) [2022-10-16 12:57:47,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2849 transitions. [2022-10-16 12:57:47,684 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2849 transitions. Word has length 107 [2022-10-16 12:57:47,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:47,685 INFO L495 AbstractCegarLoop]: Abstraction has 2001 states and 2849 transitions. [2022-10-16 12:57:47,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:57:47,685 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2849 transitions. [2022-10-16 12:57:47,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 12:57:47,693 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:47,693 INFO L195 NwaCegarLoop]: trace histogram [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 12:57:47,742 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 12:57:47,907 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,SelfDestructingSolverStorable13 [2022-10-16 12:57:47,908 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __megaraid_shutdownErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:47,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:47,908 INFO L85 PathProgramCache]: Analyzing trace with hash -445877327, now seen corresponding path program 1 times [2022-10-16 12:57:47,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:47,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590988092] [2022-10-16 12:57:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:47,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:57:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:57:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 12:57:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:57:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 12:57:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:57:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 12:57:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:57:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:57:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:57:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:48,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 12:57:48,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:48,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590988092] [2022-10-16 12:57:48,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590988092] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:48,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:57:48,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:57:48,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143769196] [2022-10-16 12:57:48,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:48,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:57:48,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:48,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:57:48,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:57:48,360 INFO L87 Difference]: Start difference. First operand 2001 states and 2849 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-16 12:57:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:55,116 INFO L93 Difference]: Finished difference Result 4244 states and 6163 transitions. [2022-10-16 12:57:55,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 12:57:55,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 128 [2022-10-16 12:57:55,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:55,133 INFO L225 Difference]: With dead ends: 4244 [2022-10-16 12:57:55,133 INFO L226 Difference]: Without dead ends: 2261 [2022-10-16 12:57:55,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:57:55,144 INFO L413 NwaCegarLoop]: 2253 mSDtfsCounter, 1104 mSDsluCounter, 5026 mSDsCounter, 0 mSdLazyCounter, 3301 mSolverCounterSat, 872 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 7279 SdHoareTripleChecker+Invalid, 4173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 872 IncrementalHoareTripleChecker+Valid, 3301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:55,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 7279 Invalid, 4173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [872 Valid, 3301 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-10-16 12:57:55,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2022-10-16 12:57:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2022. [2022-10-16 12:57:55,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1472 states have (on average 1.362092391304348) internal successors, (2005), 1580 states have internal predecessors, (2005), 410 states have call successors, (410), 70 states have call predecessors, (410), 72 states have return successors, (461), 400 states have call predecessors, (461), 410 states have call successors, (461) [2022-10-16 12:57:55,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2876 transitions. [2022-10-16 12:57:55,294 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2876 transitions. Word has length 128 [2022-10-16 12:57:55,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:55,294 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2876 transitions. [2022-10-16 12:57:55,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-16 12:57:55,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2876 transitions. [2022-10-16 12:57:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 12:57:55,300 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:55,301 INFO L195 NwaCegarLoop]: trace histogram [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 12:57:55,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 12:57:55,301 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __megaraid_shutdownErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:55,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1494704687, now seen corresponding path program 1 times [2022-10-16 12:57:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:55,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936335390] [2022-10-16 12:57:55,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:55,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:57:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:57:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 12:57:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:57:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 12:57:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:57:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 12:57:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:57:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:57:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:57:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:55,755 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 12:57:55,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:55,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936335390] [2022-10-16 12:57:55,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936335390] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:55,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314479035] [2022-10-16 12:57:55,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:55,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:55,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:55,761 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 12:57:55,765 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 12:57:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:56,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 2701 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:57:56,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:57:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 12:57:56,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:57:56,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314479035] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:57:56,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:57:56,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-10-16 12:57:56,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260175850] [2022-10-16 12:57:56,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:57:56,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:57:56,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:57:56,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:57:56,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:57:56,711 INFO L87 Difference]: Start difference. First operand 2022 states and 2876 transitions. Second operand has 3 states, 2 states have (on average 41.0) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 12:57:56,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:57:56,845 INFO L93 Difference]: Finished difference Result 4026 states and 5754 transitions. [2022-10-16 12:57:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:57:56,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 41.0) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 128 [2022-10-16 12:57:56,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:57:56,857 INFO L225 Difference]: With dead ends: 4026 [2022-10-16 12:57:56,857 INFO L226 Difference]: Without dead ends: 2022 [2022-10-16 12:57:56,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:57:56,868 INFO L413 NwaCegarLoop]: 2372 mSDtfsCounter, 3 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4736 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:57:56,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4736 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:57:56,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-10-16 12:57:56,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2022. [2022-10-16 12:57:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2022 states, 1473 states have (on average 1.3611676849966057) internal successors, (2005), 1580 states have internal predecessors, (2005), 410 states have call successors, (410), 70 states have call predecessors, (410), 72 states have return successors, (461), 400 states have call predecessors, (461), 410 states have call successors, (461) [2022-10-16 12:57:57,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2022 states to 2022 states and 2876 transitions. [2022-10-16 12:57:57,010 INFO L78 Accepts]: Start accepts. Automaton has 2022 states and 2876 transitions. Word has length 128 [2022-10-16 12:57:57,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:57:57,011 INFO L495 AbstractCegarLoop]: Abstraction has 2022 states and 2876 transitions. [2022-10-16 12:57:57,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 41.0) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 12:57:57,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2022 states and 2876 transitions. [2022-10-16 12:57:57,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 12:57:57,018 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:57:57,018 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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 12:57:57,066 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 12:57:57,233 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,SelfDestructingSolverStorable15 [2022-10-16 12:57:57,234 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:57:57,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:57:57,235 INFO L85 PathProgramCache]: Analyzing trace with hash -731942906, now seen corresponding path program 1 times [2022-10-16 12:57:57,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:57:57,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362735891] [2022-10-16 12:57:57,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:57,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:57:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:57:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:57:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:57:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:57:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:57:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:57:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:57:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:57:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-16 12:57:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 12:57:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:57:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 12:57:58,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:57:58,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362735891] [2022-10-16 12:57:58,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362735891] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:57:58,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743262398] [2022-10-16 12:57:58,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:57:58,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:57:58,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:57:58,824 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 12:57:58,827 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 12:58:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:00,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 3201 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 12:58:00,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:58:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 12:58:00,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:58:00,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743262398] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:58:00,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:58:00,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2022-10-16 12:58:00,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045654307] [2022-10-16 12:58:00,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:58:00,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:58:00,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:58:00,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:58:00,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-16 12:58:00,269 INFO L87 Difference]: Start difference. First operand 2022 states and 2876 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:58:00,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:58:00,503 INFO L93 Difference]: Finished difference Result 4029 states and 5785 transitions. [2022-10-16 12:58:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:58:00,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2022-10-16 12:58:00,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:58:00,516 INFO L225 Difference]: With dead ends: 4029 [2022-10-16 12:58:00,517 INFO L226 Difference]: Without dead ends: 2025 [2022-10-16 12:58:00,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:58:00,531 INFO L413 NwaCegarLoop]: 2373 mSDtfsCounter, 2 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7088 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:58:00,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7088 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:58:00,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2022-10-16 12:58:00,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2025. [2022-10-16 12:58:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2025 states, 1475 states have (on average 1.36135593220339) internal successors, (2008), 1583 states have internal predecessors, (2008), 410 states have call successors, (410), 70 states have call predecessors, (410), 73 states have return successors, (462), 400 states have call predecessors, (462), 410 states have call successors, (462) [2022-10-16 12:58:00,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 2880 transitions. [2022-10-16 12:58:00,776 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 2880 transitions. Word has length 108 [2022-10-16 12:58:00,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:58:00,777 INFO L495 AbstractCegarLoop]: Abstraction has 2025 states and 2880 transitions. [2022-10-16 12:58:00,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 12:58:00,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 2880 transitions. [2022-10-16 12:58:00,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 12:58:00,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:58:00,783 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:00,824 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 12:58:00,996 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,SelfDestructingSolverStorable16 [2022-10-16 12:58:00,996 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:58:00,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:58:00,997 INFO L85 PathProgramCache]: Analyzing trace with hash 608346624, now seen corresponding path program 1 times [2022-10-16 12:58:00,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:58:00,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104133232] [2022-10-16 12:58:00,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:58:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:58:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:58:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:58:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:58:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:58:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:58:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 12:58:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:58:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:58:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 12:58:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 12:58:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 12:58:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:02,617 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 12:58:02,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:58:02,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104133232] [2022-10-16 12:58:02,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104133232] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:58:02,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967331245] [2022-10-16 12:58:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:58:02,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:58:02,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:58:02,620 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 12:58:02,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 12:58:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:03,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 3231 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 12:58:03,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:58:04,037 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:58:04,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:58:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 12:58:04,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967331245] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:58:04,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:58:04,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2022-10-16 12:58:04,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567918438] [2022-10-16 12:58:04,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:58:04,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 12:58:04,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:58:04,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 12:58:04,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:58:04,177 INFO L87 Difference]: Start difference. First operand 2025 states and 2880 transitions. Second operand has 15 states, 15 states have (on average 8.866666666666667) internal successors, (133), 11 states have internal predecessors, (133), 2 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 12:58:24,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:58:24,365 INFO L93 Difference]: Finished difference Result 6543 states and 9582 transitions. [2022-10-16 12:58:24,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-16 12:58:24,366 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.866666666666667) internal successors, (133), 11 states have internal predecessors, (133), 2 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) Word has length 110 [2022-10-16 12:58:24,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:58:24,389 INFO L225 Difference]: With dead ends: 6543 [2022-10-16 12:58:24,389 INFO L226 Difference]: Without dead ends: 4527 [2022-10-16 12:58:24,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=381, Invalid=1689, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 12:58:24,403 INFO L413 NwaCegarLoop]: 2987 mSDtfsCounter, 4071 mSDsluCounter, 22637 mSDsCounter, 0 mSdLazyCounter, 14824 mSolverCounterSat, 1923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4431 SdHoareTripleChecker+Valid, 25624 SdHoareTripleChecker+Invalid, 16747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1923 IncrementalHoareTripleChecker+Valid, 14824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:58:24,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4431 Valid, 25624 Invalid, 16747 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1923 Valid, 14824 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2022-10-16 12:58:24,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2022-10-16 12:58:24,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 3997. [2022-10-16 12:58:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3997 states, 2962 states have (on average 1.3636056718433491) internal successors, (4039), 3111 states have internal predecessors, (4039), 819 states have call successors, (819), 142 states have call predecessors, (819), 149 states have return successors, (927), 801 states have call predecessors, (927), 819 states have call successors, (927) [2022-10-16 12:58:24,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3997 states to 3997 states and 5785 transitions. [2022-10-16 12:58:24,807 INFO L78 Accepts]: Start accepts. Automaton has 3997 states and 5785 transitions. Word has length 110 [2022-10-16 12:58:24,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:58:24,808 INFO L495 AbstractCegarLoop]: Abstraction has 3997 states and 5785 transitions. [2022-10-16 12:58:24,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.866666666666667) internal successors, (133), 11 states have internal predecessors, (133), 2 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (22), 4 states have call predecessors, (22), 2 states have call successors, (22) [2022-10-16 12:58:24,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3997 states and 5785 transitions. [2022-10-16 12:58:24,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 12:58:24,820 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:58:24,821 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-10-16 12:58:24,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 12:58:25,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 12:58:25,034 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __megaraid_shutdownErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:58:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:58:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1902334199, now seen corresponding path program 1 times [2022-10-16 12:58:25,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:58:25,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547449589] [2022-10-16 12:58:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:58:25,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:58:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:58:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:58:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 12:58:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 12:58:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-16 12:58:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:58:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 12:58:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 12:58:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:58:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:58:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 12:58:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 12:58:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-10-16 12:58:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 12:58:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 12:58:25,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:58:25,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547449589] [2022-10-16 12:58:25,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547449589] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:58:25,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680083995] [2022-10-16 12:58:25,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:58:25,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:58:25,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:58:25,512 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:58:25,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 12:58:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:26,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 2763 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 12:58:26,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:58:26,675 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-16 12:58:26,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:58:26,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680083995] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:58:26,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:58:26,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-10-16 12:58:26,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259030001] [2022-10-16 12:58:26,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:58:26,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:58:26,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:58:26,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:58:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:58:26,680 INFO L87 Difference]: Start difference. First operand 3997 states and 5785 transitions. Second operand has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 12:58:26,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:58:26,875 INFO L93 Difference]: Finished difference Result 3997 states and 5785 transitions. [2022-10-16 12:58:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:58:26,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 133 [2022-10-16 12:58:26,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:58:26,894 INFO L225 Difference]: With dead ends: 3997 [2022-10-16 12:58:26,894 INFO L226 Difference]: Without dead ends: 3996 [2022-10-16 12:58:26,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:58:26,898 INFO L413 NwaCegarLoop]: 2371 mSDtfsCounter, 4 mSDsluCounter, 2362 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4733 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:58:26,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4733 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:58:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3996 states. [2022-10-16 12:58:27,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3996 to 3996. [2022-10-16 12:58:27,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3996 states, 2962 states have (on average 1.362930452397029) internal successors, (4037), 3110 states have internal predecessors, (4037), 819 states have call successors, (819), 142 states have call predecessors, (819), 149 states have return successors, (927), 801 states have call predecessors, (927), 819 states have call successors, (927) [2022-10-16 12:58:27,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3996 states to 3996 states and 5783 transitions. [2022-10-16 12:58:27,354 INFO L78 Accepts]: Start accepts. Automaton has 3996 states and 5783 transitions. Word has length 133 [2022-10-16 12:58:27,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:58:27,355 INFO L495 AbstractCegarLoop]: Abstraction has 3996 states and 5783 transitions. [2022-10-16 12:58:27,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 42.0) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 12:58:27,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3996 states and 5783 transitions. [2022-10-16 12:58:27,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 12:58:27,369 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:58:27,370 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 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 12:58:27,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 12:58:27,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:58:27,585 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:58:27,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:58:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1942320932, now seen corresponding path program 1 times [2022-10-16 12:58:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:58:27,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377568507] [2022-10-16 12:58:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:58:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:58:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:58:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:58:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:58:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:58:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:58:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-16 12:58:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:58:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 12:58:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 12:58:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 12:58:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:58:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-16 12:58:29,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:58:29,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377568507] [2022-10-16 12:58:29,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377568507] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:58:29,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761082075] [2022-10-16 12:58:29,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:58:29,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:58:29,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:58:29,485 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:58:29,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 12:58:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:31,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 3292 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 12:58:31,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:58:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 12:58:31,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:58:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 12:58:31,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761082075] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:58:31,575 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:58:31,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6] total 16 [2022-10-16 12:58:31,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596615050] [2022-10-16 12:58:31,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:58:31,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 12:58:31,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:58:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 12:58:31,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-10-16 12:58:31,578 INFO L87 Difference]: Start difference. First operand 3996 states and 5783 transitions. Second operand has 16 states, 16 states have (on average 6.875) internal successors, (110), 14 states have internal predecessors, (110), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2022-10-16 12:58:45,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:58:45,339 INFO L93 Difference]: Finished difference Result 8437 states and 12567 transitions. [2022-10-16 12:58:45,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 12:58:45,340 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 14 states have internal predecessors, (110), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 114 [2022-10-16 12:58:45,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:58:45,365 INFO L225 Difference]: With dead ends: 8437 [2022-10-16 12:58:45,365 INFO L226 Difference]: Without dead ends: 4470 [2022-10-16 12:58:45,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 238 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2022-10-16 12:58:45,385 INFO L413 NwaCegarLoop]: 2262 mSDtfsCounter, 1067 mSDsluCounter, 15770 mSDsCounter, 0 mSdLazyCounter, 9969 mSolverCounterSat, 874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 18032 SdHoareTripleChecker+Invalid, 10843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 874 IncrementalHoareTripleChecker+Valid, 9969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:58:45,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 18032 Invalid, 10843 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [874 Valid, 9969 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-10-16 12:58:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2022-10-16 12:58:45,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4004. [2022-10-16 12:58:45,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4004 states, 2970 states have (on average 1.363973063973064) internal successors, (4051), 3118 states have internal predecessors, (4051), 819 states have call successors, (819), 142 states have call predecessors, (819), 149 states have return successors, (927), 801 states have call predecessors, (927), 819 states have call successors, (927) [2022-10-16 12:58:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4004 states to 4004 states and 5797 transitions. [2022-10-16 12:58:45,767 INFO L78 Accepts]: Start accepts. Automaton has 4004 states and 5797 transitions. Word has length 114 [2022-10-16 12:58:45,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:58:45,768 INFO L495 AbstractCegarLoop]: Abstraction has 4004 states and 5797 transitions. [2022-10-16 12:58:45,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 14 states have internal predecessors, (110), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2022-10-16 12:58:45,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4004 states and 5797 transitions. [2022-10-16 12:58:45,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 12:58:45,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:58:45,783 INFO L195 NwaCegarLoop]: trace histogram [7, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:45,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 12:58:45,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:58:45,998 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:58:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:58:45,999 INFO L85 PathProgramCache]: Analyzing trace with hash -144014216, now seen corresponding path program 2 times [2022-10-16 12:58:45,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:58:46,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527565264] [2022-10-16 12:58:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:58:46,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:58:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:58:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:47,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:58:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:47,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:58:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:47,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:58:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:47,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:58:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:48,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-16 12:58:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:58:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:48,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 12:58:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:48,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:58:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 12:58:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:48,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 12:58:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:58:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 12:58:48,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:58:48,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527565264] [2022-10-16 12:58:48,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527565264] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:58:48,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539220226] [2022-10-16 12:58:48,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 12:58:48,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:58:48,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:58:48,197 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:58:48,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 12:58:53,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 12:58:53,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:58:53,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 3428 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 12:58:53,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:58:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 12:58:54,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:58:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 12:58:54,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539220226] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:58:54,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:58:54,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 7] total 22 [2022-10-16 12:58:54,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245866189] [2022-10-16 12:58:54,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:58:54,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 12:58:54,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:58:54,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 12:58:54,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-10-16 12:58:54,504 INFO L87 Difference]: Start difference. First operand 4004 states and 5797 transitions. Second operand has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 20 states have internal predecessors, (116), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2022-10-16 12:59:12,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:59:12,628 INFO L93 Difference]: Finished difference Result 8461 states and 12689 transitions. [2022-10-16 12:59:12,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 12:59:12,631 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 20 states have internal predecessors, (116), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 116 [2022-10-16 12:59:12,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:59:12,659 INFO L225 Difference]: With dead ends: 8461 [2022-10-16 12:59:12,660 INFO L226 Difference]: Without dead ends: 4486 [2022-10-16 12:59:12,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 237 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=158, Invalid=1102, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 12:59:12,679 INFO L413 NwaCegarLoop]: 2252 mSDtfsCounter, 1091 mSDsluCounter, 22062 mSDsCounter, 0 mSdLazyCounter, 14277 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 24314 SdHoareTripleChecker+Invalid, 15161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 14277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:59:12,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 24314 Invalid, 15161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [884 Valid, 14277 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2022-10-16 12:59:12,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. [2022-10-16 12:59:13,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4486 to 4008. [2022-10-16 12:59:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 2974 states have (on average 1.3648285137861467) internal successors, (4059), 3122 states have internal predecessors, (4059), 819 states have call successors, (819), 142 states have call predecessors, (819), 149 states have return successors, (925), 801 states have call predecessors, (925), 819 states have call successors, (925) [2022-10-16 12:59:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 5803 transitions. [2022-10-16 12:59:13,062 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 5803 transitions. Word has length 116 [2022-10-16 12:59:13,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:59:13,063 INFO L495 AbstractCegarLoop]: Abstraction has 4008 states and 5803 transitions. [2022-10-16 12:59:13,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 20 states have internal predecessors, (116), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2022-10-16 12:59:13,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 5803 transitions. [2022-10-16 12:59:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 12:59:13,077 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:59:13,077 INFO L195 NwaCegarLoop]: trace histogram [8, 3, 3, 3, 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 12:59:13,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 12:59:13,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:59:13,292 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting megaraid_queue_lckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:59:13,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:59:13,293 INFO L85 PathProgramCache]: Analyzing trace with hash -580709276, now seen corresponding path program 3 times [2022-10-16 12:59:13,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:59:13,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689043915] [2022-10-16 12:59:13,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:59:13,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:59:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:59:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:59:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 12:59:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 12:59:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:59:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-10-16 12:59:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:59:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 12:59:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 12:59:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 12:59:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 12:59:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 12:59:16,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:59:16,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689043915] [2022-10-16 12:59:16,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689043915] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:59:16,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216442750] [2022-10-16 12:59:16,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 12:59:16,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:59:16,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:59:16,433 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:59:16,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 12:59:23,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 12:59:23,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 12:59:23,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 3115 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 12:59:23,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:59:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 12:59:23,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:59:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 12:59:23,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216442750] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:59:23,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:59:23,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 18 [2022-10-16 12:59:23,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269337700] [2022-10-16 12:59:23,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:59:23,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 12:59:23,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:59:23,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 12:59:23,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-10-16 12:59:23,696 INFO L87 Difference]: Start difference. First operand 4008 states and 5803 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2022-10-16 12:59:35,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:59:35,499 INFO L93 Difference]: Finished difference Result 8487 states and 12813 transitions. [2022-10-16 12:59:35,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 12:59:35,504 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 118 [2022-10-16 12:59:35,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:59:35,524 INFO L225 Difference]: With dead ends: 8487 [2022-10-16 12:59:35,525 INFO L226 Difference]: Without dead ends: 4502 [2022-10-16 12:59:35,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=160, Invalid=962, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 12:59:35,544 INFO L413 NwaCegarLoop]: 2266 mSDtfsCounter, 1085 mSDsluCounter, 11147 mSDsCounter, 0 mSdLazyCounter, 7312 mSolverCounterSat, 888 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 13413 SdHoareTripleChecker+Invalid, 8200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 888 IncrementalHoareTripleChecker+Valid, 7312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:59:35,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 13413 Invalid, 8200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [888 Valid, 7312 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-10-16 12:59:35,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2022-10-16 12:59:35,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4018. [2022-10-16 12:59:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4018 states, 2984 states have (on average 1.364946380697051) internal successors, (4073), 3130 states have internal predecessors, (4073), 819 states have call successors, (819), 144 states have call predecessors, (819), 149 states have return successors, (925), 801 states have call predecessors, (925), 819 states have call successors, (925) [2022-10-16 12:59:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5817 transitions. [2022-10-16 12:59:35,950 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5817 transitions. Word has length 118 [2022-10-16 12:59:35,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:59:35,951 INFO L495 AbstractCegarLoop]: Abstraction has 4018 states and 5817 transitions. [2022-10-16 12:59:35,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) [2022-10-16 12:59:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5817 transitions. [2022-10-16 12:59:35,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 12:59:35,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:59:35,967 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, 1, 1, 1, 1] [2022-10-16 12:59:36,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 12:59:36,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 12:59:36,182 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mega_free_sglErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mega_free_sglErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, megaraid_queue_lckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 85 more)] === [2022-10-16 12:59:36,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:59:36,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1307125837, now seen corresponding path program 1 times [2022-10-16 12:59:36,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:59:36,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117260510] [2022-10-16 12:59:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:59:36,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:59:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:59:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:59:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 12:59:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 12:59:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 12:59:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 12:59:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 12:59:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 12:59:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-10-16 12:59:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 12:59:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 12:59:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:59:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 12:59:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:59:37,877 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 12:59:37,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:59:37,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117260510] [2022-10-16 12:59:37,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117260510] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:59:37,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:59:37,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-16 12:59:37,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340335949] [2022-10-16 12:59:37,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:59:37,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 12:59:37,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:59:37,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 12:59:37,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-16 12:59:37,880 INFO L87 Difference]: Start difference. First operand 4018 states and 5817 transitions. Second operand has 11 states, 9 states have (on average 9.777777777777779) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13)