/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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:19:05,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:19:05,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:19:06,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:19:06,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:19:06,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:19:06,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:19:06,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:19:06,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:19:06,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:19:06,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:19:06,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:19:06,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:19:06,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:19:06,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:19:06,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:19:06,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:19:06,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:19:06,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:19:06,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:19:06,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:19:06,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:19:06,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:19:06,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:19:06,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:19:06,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:19:06,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:19:06,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:19:06,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:19:06,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:19:06,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:19:06,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:19:06,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:19:06,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:19:06,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:19:06,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:19:06,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:19:06,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:19:06,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:19:06,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:19:06,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:19:06,102 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:19:06,150 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:19:06,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:19:06,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:19:06,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:19:06,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:19:06,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:19:06,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:19:06,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:19:06,157 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:19:06,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:19:06,159 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:19:06,159 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:19:06,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:19:06,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:19:06,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:19:06,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:19:06,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:19:06,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:19:06,161 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:19:06,161 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:19:06,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:19:06,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:19:06,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:19:06,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:19:06,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:19:06,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:19:06,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:19:06,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:19:06,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:19:06,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:19:06,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:19:06,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:19:06,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:19:06,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:19:06,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:19:06,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:19:06,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:19:06,654 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:19:06,655 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:19:06,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2022-10-15 21:19:06,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3df5576d3/11850b71fb424eb0a6b0f225ca41d4f9/FLAGe6b0105b9 [2022-10-15 21:19:07,957 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:19:07,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2022-10-15 21:19:07,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3df5576d3/11850b71fb424eb0a6b0f225ca41d4f9/FLAGe6b0105b9 [2022-10-15 21:19:08,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3df5576d3/11850b71fb424eb0a6b0f225ca41d4f9 [2022-10-15 21:19:08,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:19:08,345 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:19:08,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:19:08,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:19:08,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:19:08,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:19:08" (1/1) ... [2022-10-15 21:19:08,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50115595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:08, skipping insertion in model container [2022-10-15 21:19:08,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:19:08" (1/1) ... [2022-10-15 21:19:08,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:19:08,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:19:09,267 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2022-10-15 21:19:09,268 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4407-4408] [2022-10-15 21:19:09,715 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i[136345,136358] [2022-10-15 21:19:10,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:19:10,673 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:19:10,858 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2022-10-15 21:19:10,858 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4407-4408] [2022-10-15 21:19:10,869 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i[136345,136358] [2022-10-15 21:19:11,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:19:11,252 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:19:11,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11 WrapperNode [2022-10-15 21:19:11,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:19:11,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:19:11,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:19:11,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:19:11,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,555 INFO L138 Inliner]: procedures = 238, calls = 1473, calls flagged for inlining = 139, calls inlined = 137, statements flattened = 4037 [2022-10-15 21:19:11,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:19:11,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:19:11,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:19:11,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:19:11,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:19:11,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:19:11,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:19:11,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:19:11,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (1/1) ... [2022-10-15 21:19:11,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:19:11,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:19:12,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:19:12,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:19:12,116 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_dev [2022-10-15 21:19:12,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_dev [2022-10-15 21:19:12,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:19:12,117 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_complete_request [2022-10-15 21:19:12,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_complete_request [2022-10-15 21:19:12,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:19:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:19:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:19:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_request_ring [2022-10-15 21:19:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_request_ring [2022-10-15 21:19:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_completion_ring [2022-10-15 21:19:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_completion_ring [2022-10-15 21:19:12,118 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmap_buffers [2022-10-15 21:19:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmap_buffers [2022-10-15 21:19:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-15 21:19:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-15 21:19:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:19:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:19:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-15 21:19:12,119 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-10-15 21:19:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-10-15 21:19:12,120 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_write [2022-10-15 21:19:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_write [2022-10-15 21:19:12,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:19:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:19:12,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2022-10-15 21:19:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2022-10-15 21:19:12,121 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-10-15 21:19:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-10-15 21:19:12,121 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_remove [2022-10-15 21:19:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_remove [2022-10-15 21:19:12,121 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-10-15 21:19:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-10-15 21:19:12,121 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-15 21:19:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-15 21:19:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_resources [2022-10-15 21:19:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_resources [2022-10-15 21:19:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:19:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:19:12,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:19:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:19:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-10-15 21:19:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-10-15 21:19:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_context [2022-10-15 21:19:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_context [2022-10-15 21:19:12,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:19:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:19:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:19:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:19:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-10-15 21:19:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-10-15 21:19:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:19:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:19:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure __pvscsi_shutdown [2022-10-15 21:19:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __pvscsi_shutdown [2022-10-15 21:19:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_write_cmd_desc [2022-10-15 21:19:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_write_cmd_desc [2022-10-15 21:19:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-10-15 21:19:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-10-15 21:19:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:19:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:19:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_read [2022-10-15 21:19:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_read [2022-10-15 21:19:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure ll_adapter_reset [2022-10-15 21:19:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_adapter_reset [2022-10-15 21:19:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown_intr [2022-10-15 21:19:12,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown_intr [2022-10-15 21:19:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-10-15 21:19:12,130 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-10-15 21:19:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-10-15 21:19:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-10-15 21:19:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-10-15 21:19:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-10-15 21:19:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:19:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:19:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:19:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-15 21:19:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-15 21:19:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:19:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:19:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-15 21:19:12,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-15 21:19:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-15 21:19:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-15 21:19:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-10-15 21:19:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-10-15 21:19:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-15 21:19:12,134 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-15 21:19:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:19:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-15 21:19:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-15 21:19:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_get [2022-10-15 21:19:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_get [2022-10-15 21:19:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_msg_pending [2022-10-15 21:19:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_msg_pending [2022-10-15 21:19:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:19:12,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:19:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:19:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown [2022-10-15 21:19:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown [2022-10-15 21:19:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2022-10-15 21:19:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2022-10-15 21:19:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:19:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:19:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmask_intr [2022-10-15 21:19:12,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmask_intr [2022-10-15 21:19:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_map_context [2022-10-15 21:19:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_map_context [2022-10-15 21:19:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:19:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-15 21:19:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-15 21:19:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:19:12,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:19:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-10-15 21:19:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-10-15 21:19:12,140 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_lookup [2022-10-15 21:19:12,140 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_lookup [2022-10-15 21:19:12,141 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-15 21:19:12,143 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-15 21:19:12,144 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_setup_all_rings [2022-10-15 21:19:12,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_setup_all_rings [2022-10-15 21:19:12,152 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-10-15 21:19:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-10-15 21:19:12,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:19:12,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:19:12,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:19:13,004 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:19:13,008 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:19:13,696 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:19:28,207 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:19:28,242 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:19:28,242 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:19:28,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:19:28 BoogieIcfgContainer [2022-10-15 21:19:28,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:19:28,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:19:28,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:19:28,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:19:28,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:19:08" (1/3) ... [2022-10-15 21:19:28,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4172d99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:19:28, skipping insertion in model container [2022-10-15 21:19:28,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:11" (2/3) ... [2022-10-15 21:19:28,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4172d99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:19:28, skipping insertion in model container [2022-10-15 21:19:28,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:19:28" (3/3) ... [2022-10-15 21:19:28,259 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--vmw_pvscsi.ko-entry_point.cil.out.i [2022-10-15 21:19:28,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:19:28,285 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-10-15 21:19:28,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:19:28,418 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;@33de6790, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:19:28,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-10-15 21:19:28,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 1129 states, 842 states have (on average 1.3919239904988123) internal successors, (1172), 893 states have internal predecessors, (1172), 205 states have call successors, (205), 54 states have call predecessors, (205), 53 states have return successors, (199), 196 states have call predecessors, (199), 199 states have call successors, (199) [2022-10-15 21:19:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 21:19:28,447 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:19:28,448 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] [2022-10-15 21:19:28,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [pvscsi_map_contextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pvscsi_map_contextErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pvscsi_map_contextErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 21:19:28,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:19:28,456 INFO L85 PathProgramCache]: Analyzing trace with hash -554287431, now seen corresponding path program 1 times [2022-10-15 21:19:28,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:19:28,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098790572] [2022-10-15 21:19:28,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:19:28,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:19:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:19:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:19:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:19:29,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:19:29,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098790572] [2022-10-15 21:19:29,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098790572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:19:29,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:19:29,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:19:29,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976672213] [2022-10-15 21:19:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:19:29,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:19:29,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:19:29,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:19:29,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:19:29,411 INFO L87 Difference]: Start difference. First operand has 1129 states, 842 states have (on average 1.3919239904988123) internal successors, (1172), 893 states have internal predecessors, (1172), 205 states have call successors, (205), 54 states have call predecessors, (205), 53 states have return successors, (199), 196 states have call predecessors, (199), 199 states have call successors, (199) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:19:31,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:33,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:41,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:43,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:19:44,608 INFO L93 Difference]: Finished difference Result 3285 states and 4702 transitions. [2022-10-15 21:19:44,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:19:44,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-10-15 21:19:44,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:19:44,654 INFO L225 Difference]: With dead ends: 3285 [2022-10-15 21:19:44,655 INFO L226 Difference]: Without dead ends: 2116 [2022-10-15 21:19:44,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:19:44,677 INFO L413 NwaCegarLoop]: 1832 mSDtfsCounter, 1588 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 513 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 3605 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:19:44,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 3605 Invalid, 1817 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [513 Valid, 1301 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2022-10-15 21:19:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2022-10-15 21:19:44,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1839. [2022-10-15 21:19:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1380 states have (on average 1.3630434782608696) internal successors, (1881), 1433 states have internal predecessors, (1881), 334 states have call successors, (334), 97 states have call predecessors, (334), 97 states have return successors, (334), 329 states have call predecessors, (334), 334 states have call successors, (334) [2022-10-15 21:19:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2549 transitions. [2022-10-15 21:19:44,965 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2549 transitions. Word has length 28 [2022-10-15 21:19:44,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:19:44,966 INFO L495 AbstractCegarLoop]: Abstraction has 1839 states and 2549 transitions. [2022-10-15 21:19:44,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:19:44,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2549 transitions. [2022-10-15 21:19:44,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-15 21:19:44,978 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:19:44,979 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] [2022-10-15 21:19:44,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:19:44,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting pvscsi_process_completion_ringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [pvscsi_map_contextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pvscsi_map_contextErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pvscsi_map_contextErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-15 21:19:44,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:19:44,980 INFO L85 PathProgramCache]: Analyzing trace with hash -553644292, now seen corresponding path program 1 times [2022-10-15 21:19:44,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:19:44,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318389301] [2022-10-15 21:19:44,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:19:44,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:19:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:45,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:19:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:45,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:19:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 21:19:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:45,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:19:45,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:19:45,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318389301] [2022-10-15 21:19:45,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318389301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:19:45,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:19:45,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:19:45,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818860148] [2022-10-15 21:19:45,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:19:45,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:19:45,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:19:45,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:19:45,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:19:45,746 INFO L87 Difference]: Start difference. First operand 1839 states and 2549 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:19:48,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []