/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 [2022-10-16 13:23:28,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:23:28,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:23:28,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:23:28,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:23:28,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:23:28,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:23:28,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:23:28,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:23:28,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:23:28,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:23:28,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:23:28,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:23:28,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:23:28,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:23:28,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:23:28,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:23:28,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:23:28,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:23:28,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:23:28,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:23:28,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:23:28,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:23:28,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:23:28,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:23:28,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:23:28,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:23:28,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:23:28,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:23:28,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:23:28,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:23:28,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:23:28,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:23:28,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:23:28,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:23:28,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:23:28,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:23:28,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:23:28,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:23:28,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:23:28,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:23:28,452 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 13:23:28,510 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:23:28,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:23:28,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:23:28,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:23:28,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:23:28,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:23:28,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:23:28,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:23:28,516 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:23:28,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:23:28,518 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:23:28,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:23:28,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:23:28,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:23:28,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:23:28,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:23:28,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:23:28,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:23:28,520 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:23:28,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:23:28,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:23:28,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:23:28,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:23:28,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:23:28,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:23:28,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:23:28,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:23:28,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:23:28,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:23:28,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:23:28,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:23:28,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:23:28,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:23:28,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:23:28,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:23:29,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:23:29,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:23:29,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:23:29,028 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:23:29,030 INFO L432 ainManager$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 [2022-10-16 13:23:29,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46c3786be/6e2cfb45939b4a01a23c4fc74d4c2911/FLAGbd1e914b8 [2022-10-16 13:23:30,276 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:23:30,277 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 [2022-10-16 13:23:30,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46c3786be/6e2cfb45939b4a01a23c4fc74d4c2911/FLAGbd1e914b8 [2022-10-16 13:23:30,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46c3786be/6e2cfb45939b4a01a23c4fc74d4c2911 [2022-10-16 13:23:30,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:23:30,748 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:23:30,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:23:30,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:23:30,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:23:30,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:23:30" (1/1) ... [2022-10-16 13:23:30,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f69fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:30, skipping insertion in model container [2022-10-16 13:23:30,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:23:30" (1/1) ... [2022-10-16 13:23:30,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:23:30,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:23:31,463 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2022-10-16 13:23:31,463 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] [2022-10-16 13:23:31,852 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] [2022-10-16 13:23:32,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:23:32,799 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:23:33,001 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4406] [2022-10-16 13:23:33,003 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] [2022-10-16 13:23:33,040 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] [2022-10-16 13:23:33,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:23:33,427 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:23:33,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33 WrapperNode [2022-10-16 13:23:33,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:23:33,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:23:33,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:23:33,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:23:33,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,721 INFO L138 Inliner]: procedures = 238, calls = 1473, calls flagged for inlining = 139, calls inlined = 137, statements flattened = 4037 [2022-10-16 13:23:33,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:23:33,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:23:33,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:23:33,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:23:33,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,939 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:23:33,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:23:33,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:23:33,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:23:33,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (1/1) ... [2022-10-16 13:23:33,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:23:34,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:23:34,028 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 13:23:34,046 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 13:23:34,109 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_dev [2022-10-16 13:23:34,110 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_dev [2022-10-16 13:23:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 13:23:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_complete_request [2022-10-16 13:23:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_complete_request [2022-10-16 13:23:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 13:23:34,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:23:34,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:23:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_request_ring [2022-10-16 13:23:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_request_ring [2022-10-16 13:23:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_process_completion_ring [2022-10-16 13:23:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_process_completion_ring [2022-10-16 13:23:34,113 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmap_buffers [2022-10-16 13:23:34,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmap_buffers [2022-10-16 13:23:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-16 13:23:34,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-16 13:23:34,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:23:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:23:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-16 13:23:34,165 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-10-16 13:23:34,165 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-10-16 13:23:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_write [2022-10-16 13:23:34,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_write [2022-10-16 13:23:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:23:34,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:23:34,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2022-10-16 13:23:34,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2022-10-16 13:23:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-10-16 13:23:34,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-10-16 13:23:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_remove [2022-10-16 13:23:34,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_remove [2022-10-16 13:23:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-10-16 13:23:34,167 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-10-16 13:23:34,167 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-16 13:23:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-16 13:23:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_resources [2022-10-16 13:23:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_resources [2022-10-16 13:23:34,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 13:23:34,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 13:23:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:23:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:23:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-10-16 13:23:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-10-16 13:23:34,173 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_release_context [2022-10-16 13:23:34,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_release_context [2022-10-16 13:23:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:23:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 13:23:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 13:23:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:23:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-10-16 13:23:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-10-16 13:23:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 13:23:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 13:23:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure __pvscsi_shutdown [2022-10-16 13:23:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __pvscsi_shutdown [2022-10-16 13:23:34,184 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_write_cmd_desc [2022-10-16 13:23:34,184 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_write_cmd_desc [2022-10-16 13:23:34,186 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-10-16 13:23:34,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-10-16 13:23:34,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:23:34,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:23:34,187 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_reg_read [2022-10-16 13:23:34,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_reg_read [2022-10-16 13:23:34,190 INFO L130 BoogieDeclarations]: Found specification of procedure ll_adapter_reset [2022-10-16 13:23:34,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_adapter_reset [2022-10-16 13:23:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown_intr [2022-10-16 13:23:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown_intr [2022-10-16 13:23:34,192 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-10-16 13:23:34,193 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-10-16 13:23:34,193 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-10-16 13:23:34,193 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-10-16 13:23:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-10-16 13:23:34,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-10-16 13:23:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 13:23:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:23:34,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:23:34,196 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-16 13:23:34,196 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-16 13:23:34,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:23:34,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:23:34,196 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-16 13:23:34,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-16 13:23:34,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:23:34,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:23:34,198 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-10-16 13:23:34,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-10-16 13:23:34,199 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-16 13:23:34,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-16 13:23:34,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:23:34,200 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-16 13:23:34,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-16 13:23:34,200 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_get [2022-10-16 13:23:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_get [2022-10-16 13:23:34,201 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_msg_pending [2022-10-16 13:23:34,201 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_msg_pending [2022-10-16 13:23:34,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:23:34,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:23:34,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:23:34,202 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_shutdown [2022-10-16 13:23:34,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_shutdown [2022-10-16 13:23:34,202 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sg_count [2022-10-16 13:23:34,202 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sg_count [2022-10-16 13:23:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:23:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:23:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_unmask_intr [2022-10-16 13:23:34,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_unmask_intr [2022-10-16 13:23:34,204 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_map_context [2022-10-16 13:23:34,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_map_context [2022-10-16 13:23:34,204 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 13:23:34,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-16 13:23:34,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-16 13:23:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:23:34,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:23:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-10-16 13:23:34,205 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-10-16 13:23:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_lookup [2022-10-16 13:23:34,205 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_lookup [2022-10-16 13:23:34,207 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-16 13:23:34,208 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-16 13:23:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure pvscsi_setup_all_rings [2022-10-16 13:23:34,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pvscsi_setup_all_rings [2022-10-16 13:23:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-10-16 13:23:34,216 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-10-16 13:23:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:23:34,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:23:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:23:35,000 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:23:35,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:23:35,887 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:23:49,759 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:23:49,802 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:23:49,802 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:23:49,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:23:49 BoogieIcfgContainer [2022-10-16 13:23:49,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:23:49,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:23:49,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:23:49,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:23:49,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:23:30" (1/3) ... [2022-10-16 13:23:49,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d00cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:23:49, skipping insertion in model container [2022-10-16 13:23:49,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:23:33" (2/3) ... [2022-10-16 13:23:49,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d00cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:23:49, skipping insertion in model container [2022-10-16 13:23:49,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:23:49" (3/3) ... [2022-10-16 13:23:49,822 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 [2022-10-16 13:23:49,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:23:49,846 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-10-16 13:23:49,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:23:49,982 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;@43dca21d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:23:49,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-10-16 13:23:49,997 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) [2022-10-16 13:23:50,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 13:23:50,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:23:50,025 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] [2022-10-16 13:23:50,028 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)] === [2022-10-16 13:23:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:23:50,040 INFO L85 PathProgramCache]: Analyzing trace with hash -554287431, now seen corresponding path program 1 times [2022-10-16 13:23:50,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:23:50,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164212034] [2022-10-16 13:23:50,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:23:50,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:23:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:23:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:50,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:23:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:23:50,812 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 13:23:50,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:23:50,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164212034] [2022-10-16 13:23:50,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164212034] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:23:50,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:23:50,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:23:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124281391] [2022-10-16 13:23:50,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:23:50,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:23:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:23:50,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:23:50,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:23:50,864 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) [2022-10-16 13:23:53,159 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 [] [2022-10-16 13:23:55,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:02,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:04,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:05,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:24:05,441 INFO L93 Difference]: Finished difference Result 3285 states and 4702 transitions. [2022-10-16 13:24:05,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:24:05,446 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 [2022-10-16 13:24:05,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:24:05,512 INFO L225 Difference]: With dead ends: 3285 [2022-10-16 13:24:05,512 INFO L226 Difference]: Without dead ends: 2116 [2022-10-16 13:24:05,531 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 [2022-10-16 13:24:05,537 INFO L413 NwaCegarLoop]: 1833 mSDtfsCounter, 1588 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 513 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:24:05,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 3608 Invalid, 1817 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [513 Valid, 1301 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2022-10-16 13:24:05,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2022-10-16 13:24:05,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1839. [2022-10-16 13:24:05,799 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) [2022-10-16 13:24:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2549 transitions. [2022-10-16 13:24:05,821 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2549 transitions. Word has length 28 [2022-10-16 13:24:05,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:24:05,821 INFO L495 AbstractCegarLoop]: Abstraction has 1839 states and 2549 transitions. [2022-10-16 13:24:05,822 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) [2022-10-16 13:24:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2549 transitions. [2022-10-16 13:24:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 13:24:05,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:24:05,838 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] [2022-10-16 13:24:05,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:24:05,838 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)] === [2022-10-16 13:24:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:24:05,839 INFO L85 PathProgramCache]: Analyzing trace with hash -553644292, now seen corresponding path program 1 times [2022-10-16 13:24:05,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:24:05,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841764445] [2022-10-16 13:24:05,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:05,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:24:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:24:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:24:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-16 13:24:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:06,407 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 13:24:06,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:24:06,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841764445] [2022-10-16 13:24:06,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841764445] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:24:06,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:24:06,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:24:06,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230750647] [2022-10-16 13:24:06,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:24:06,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:24:06,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:24:06,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:24:06,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:24:06,412 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) [2022-10-16 13:24:09,048 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 13:24:19,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:21,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:23,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:24,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:25,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:29,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:34,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:24:34,994 INFO L93 Difference]: Finished difference Result 6000 states and 8577 transitions. [2022-10-16 13:24:34,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:24:34,995 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 38 [2022-10-16 13:24:34,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:24:35,030 INFO L225 Difference]: With dead ends: 6000 [2022-10-16 13:24:35,030 INFO L226 Difference]: Without dead ends: 4175 [2022-10-16 13:24:35,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:24:35,043 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 3150 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 4298 mSolverCounterSat, 1397 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3315 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 5699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1397 IncrementalHoareTripleChecker+Valid, 4298 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:24:35,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3315 Valid, 4948 Invalid, 5699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1397 Valid, 4298 Invalid, 4 Unknown, 0 Unchecked, 27.6s Time] [2022-10-16 13:24:35,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2022-10-16 13:24:35,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 3729. [2022-10-16 13:24:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3729 states, 2824 states have (on average 1.3604815864022664) internal successors, (3842), 2908 states have internal predecessors, (3842), 673 states have call successors, (673), 194 states have call predecessors, (673), 204 states have return successors, (752), 667 states have call predecessors, (752), 673 states have call successors, (752) [2022-10-16 13:24:35,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3729 states to 3729 states and 5267 transitions. [2022-10-16 13:24:35,327 INFO L78 Accepts]: Start accepts. Automaton has 3729 states and 5267 transitions. Word has length 38 [2022-10-16 13:24:35,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:24:35,328 INFO L495 AbstractCegarLoop]: Abstraction has 3729 states and 5267 transitions. [2022-10-16 13:24:35,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-10-16 13:24:35,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3729 states and 5267 transitions. [2022-10-16 13:24:35,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 13:24:35,330 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:24:35,331 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] [2022-10-16 13:24:35,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:24:35,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2022-10-16 13:24:35,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:24:35,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1720909068, now seen corresponding path program 1 times [2022-10-16 13:24:35,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:24:35,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345138093] [2022-10-16 13:24:35,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:24:35,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:24:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:35,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:24:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:35,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:24:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 13:24:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:24:35,736 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 13:24:35,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:24:35,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345138093] [2022-10-16 13:24:35,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345138093] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:24:35,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:24:35,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:24:35,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851148848] [2022-10-16 13:24:35,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:24:35,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:24:35,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:24:35,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:24:35,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:24:35,740 INFO L87 Difference]: Start difference. First operand 3729 states and 5267 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-10-16 13:24:38,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:51,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:53,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:55,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:56,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:24:59,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:24:59,737 INFO L93 Difference]: Finished difference Result 11964 states and 17494 transitions. [2022-10-16 13:24:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:24:59,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 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) Word has length 37 [2022-10-16 13:24:59,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:24:59,801 INFO L225 Difference]: With dead ends: 11964 [2022-10-16 13:24:59,801 INFO L226 Difference]: Without dead ends: 8249 [2022-10-16 13:24:59,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:24:59,828 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 3160 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 4305 mSolverCounterSat, 1401 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 4940 SdHoareTripleChecker+Invalid, 5708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1401 IncrementalHoareTripleChecker+Valid, 4305 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:24:59,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 4940 Invalid, 5708 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1401 Valid, 4305 Invalid, 2 Unknown, 0 Unchecked, 23.0s Time] [2022-10-16 13:24:59,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8249 states. [2022-10-16 13:25:00,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8249 to 7487. [2022-10-16 13:25:00,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7487 states, 5692 states have (on average 1.3598032326071678) internal successors, (7740), 5852 states have internal predecessors, (7740), 1349 states have call successors, (1349), 388 states have call predecessors, (1349), 418 states have return successors, (1666), 1327 states have call predecessors, (1666), 1349 states have call successors, (1666) [2022-10-16 13:25:00,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7487 states to 7487 states and 10755 transitions. [2022-10-16 13:25:00,341 INFO L78 Accepts]: Start accepts. Automaton has 7487 states and 10755 transitions. Word has length 37 [2022-10-16 13:25:00,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:25:00,342 INFO L495 AbstractCegarLoop]: Abstraction has 7487 states and 10755 transitions. [2022-10-16 13:25:00,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-10-16 13:25:00,343 INFO L276 IsEmpty]: Start isEmpty. Operand 7487 states and 10755 transitions. [2022-10-16 13:25:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 13:25:00,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:25:00,348 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] [2022-10-16 13:25:00,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:25:00,349 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2022-10-16 13:25:00,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:25:00,350 INFO L85 PathProgramCache]: Analyzing trace with hash 28108815, now seen corresponding path program 1 times [2022-10-16 13:25:00,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:25:00,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506169206] [2022-10-16 13:25:00,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:00,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:25:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:25:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:00,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:25:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:00,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-16 13:25:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:00,813 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 13:25:00,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:25:00,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506169206] [2022-10-16 13:25:00,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506169206] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:25:00,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:25:00,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:25:00,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274856879] [2022-10-16 13:25:00,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:25:00,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:25:00,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:25:00,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:25:00,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:25:00,817 INFO L87 Difference]: Start difference. First operand 7487 states and 10755 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-10-16 13:25:03,440 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 13:25:12,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:15,455 WARN L539 Checker$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 13:25:16,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:17,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:19,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:22,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:25:28,040 INFO L93 Difference]: Finished difference Result 23839 states and 35745 transitions. [2022-10-16 13:25:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:25:28,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 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) Word has length 39 [2022-10-16 13:25:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:25:28,162 INFO L225 Difference]: With dead ends: 23839 [2022-10-16 13:25:28,163 INFO L226 Difference]: Without dead ends: 16366 [2022-10-16 13:25:28,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:25:28,210 INFO L413 NwaCegarLoop]: 1571 mSDtfsCounter, 3163 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 1409 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3329 SdHoareTripleChecker+Valid, 4935 SdHoareTripleChecker+Invalid, 5687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1409 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:25:28,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3329 Valid, 4935 Invalid, 5687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1409 Valid, 4274 Invalid, 4 Unknown, 0 Unchecked, 25.8s Time] [2022-10-16 13:25:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16366 states. [2022-10-16 13:25:29,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16366 to 15032. [2022-10-16 13:25:29,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15032 states, 11457 states have (on average 1.3584708038753601) internal successors, (15564), 11751 states have internal predecessors, (15564), 2699 states have call successors, (2699), 778 states have call predecessors, (2699), 848 states have return successors, (3720), 2663 states have call predecessors, (3720), 2699 states have call successors, (3720) [2022-10-16 13:25:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15032 states to 15032 states and 21983 transitions. [2022-10-16 13:25:29,407 INFO L78 Accepts]: Start accepts. Automaton has 15032 states and 21983 transitions. Word has length 39 [2022-10-16 13:25:29,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:25:29,408 INFO L495 AbstractCegarLoop]: Abstraction has 15032 states and 21983 transitions. [2022-10-16 13:25:29,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2022-10-16 13:25:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 15032 states and 21983 transitions. [2022-10-16 13:25:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 13:25:29,412 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:25:29,413 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] [2022-10-16 13:25:29,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:25:29,414 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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)] === [2022-10-16 13:25:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:25:29,419 INFO L85 PathProgramCache]: Analyzing trace with hash 895644741, now seen corresponding path program 1 times [2022-10-16 13:25:29,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:25:29,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592722328] [2022-10-16 13:25:29,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:29,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:25:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:25:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:25:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:29,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:25:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:29,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 13:25:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:29,791 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 13:25:29,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:25:29,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592722328] [2022-10-16 13:25:29,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592722328] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:25:29,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:25:29,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:25:29,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274442871] [2022-10-16 13:25:29,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:25:29,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:25:29,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:25:29,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:25:29,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:25:29,795 INFO L87 Difference]: Start difference. First operand 15032 states and 21983 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 13:25:35,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:37,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:42,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:43,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:46,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:25:46,667 INFO L93 Difference]: Finished difference Result 42811 states and 63637 transitions. [2022-10-16 13:25:46,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:25:46,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2022-10-16 13:25:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:25:46,924 INFO L225 Difference]: With dead ends: 42811 [2022-10-16 13:25:46,924 INFO L226 Difference]: Without dead ends: 27793 [2022-10-16 13:25:46,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:25:46,995 INFO L413 NwaCegarLoop]: 1805 mSDtfsCounter, 2724 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 1126 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 3951 SdHoareTripleChecker+Invalid, 3200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1126 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:25:46,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2850 Valid, 3951 Invalid, 3200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1126 Valid, 2071 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2022-10-16 13:25:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27793 states. [2022-10-16 13:25:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27793 to 25350. [2022-10-16 13:25:48,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25350 states, 19318 states have (on average 1.348276219070297) internal successors, (26046), 19834 states have internal predecessors, (26046), 4407 states have call successors, (4407), 1474 states have call predecessors, (4407), 1597 states have return successors, (7001), 4298 states have call predecessors, (7001), 4407 states have call successors, (7001) [2022-10-16 13:25:48,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25350 states to 25350 states and 37454 transitions. [2022-10-16 13:25:48,922 INFO L78 Accepts]: Start accepts. Automaton has 25350 states and 37454 transitions. Word has length 40 [2022-10-16 13:25:48,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:25:48,925 INFO L495 AbstractCegarLoop]: Abstraction has 25350 states and 37454 transitions. [2022-10-16 13:25:48,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 13:25:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 25350 states and 37454 transitions. [2022-10-16 13:25:48,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 13:25:48,927 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:25:48,927 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] [2022-10-16 13:25:48,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:25:48,927 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2022-10-16 13:25:48,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:25:48,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1038950817, now seen corresponding path program 1 times [2022-10-16 13:25:48,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:25:48,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941678958] [2022-10-16 13:25:48,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:25:48,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:25:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:49,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:25:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:25:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 13:25:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:25:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:25:49,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:25:49,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941678958] [2022-10-16 13:25:49,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941678958] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:25:49,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:25:49,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:25:49,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966546910] [2022-10-16 13:25:49,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:25:49,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:25:49,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:25:49,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:25:49,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:25:49,361 INFO L87 Difference]: Start difference. First operand 25350 states and 37454 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-10-16 13:25:56,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:25:59,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:03,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:04,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:06,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:07,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:16,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:26:16,776 INFO L93 Difference]: Finished difference Result 80699 states and 129280 transitions. [2022-10-16 13:26:16,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 13:26:16,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 4 states have internal predecessors, (29), 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) Word has length 40 [2022-10-16 13:26:16,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:26:17,184 INFO L225 Difference]: With dead ends: 80699 [2022-10-16 13:26:17,184 INFO L226 Difference]: Without dead ends: 55363 [2022-10-16 13:26:17,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:26:17,343 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 3163 mSDsluCounter, 3364 mSDsCounter, 0 mSdLazyCounter, 4264 mSolverCounterSat, 1417 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 4930 SdHoareTripleChecker+Invalid, 5684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1417 IncrementalHoareTripleChecker+Valid, 4264 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:26:17,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 4930 Invalid, 5684 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1417 Valid, 4264 Invalid, 3 Unknown, 0 Unchecked, 24.1s Time] [2022-10-16 13:26:17,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55363 states. [2022-10-16 13:26:20,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55363 to 50716. [2022-10-16 13:26:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50716 states, 38690 states have (on average 1.3468079607133627) internal successors, (52108), 39682 states have internal predecessors, (52108), 8783 states have call successors, (8783), 2956 states have call predecessors, (8783), 3215 states have return successors, (16511), 8586 states have call predecessors, (16511), 8783 states have call successors, (16511) [2022-10-16 13:26:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50716 states to 50716 states and 77402 transitions. [2022-10-16 13:26:21,225 INFO L78 Accepts]: Start accepts. Automaton has 50716 states and 77402 transitions. Word has length 40 [2022-10-16 13:26:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:26:21,227 INFO L495 AbstractCegarLoop]: Abstraction has 50716 states and 77402 transitions. [2022-10-16 13:26:21,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-10-16 13:26:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 50716 states and 77402 transitions. [2022-10-16 13:26:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 13:26:21,229 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:26:21,230 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 13:26:21,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:26:21,231 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [pvscsi_map_contextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, pvscsi_map_contextErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pvscsi_map_contextErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-10-16 13:26:21,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:26:21,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1504158409, now seen corresponding path program 1 times [2022-10-16 13:26:21,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:26:21,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626483401] [2022-10-16 13:26:21,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:26:21,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:26:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:26:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:21,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:26:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 13:26:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 13:26:21,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:26:21,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626483401] [2022-10-16 13:26:21,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626483401] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:26:21,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:26:21,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:26:21,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999857301] [2022-10-16 13:26:21,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:26:21,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:26:21,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:26:21,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:26:21,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:26:21,899 INFO L87 Difference]: Start difference. First operand 50716 states and 77402 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:26:27,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:29,135 WARN L539 Checker$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 13:26:31,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:34,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:26:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:26:40,248 INFO L93 Difference]: Finished difference Result 109578 states and 170377 transitions. [2022-10-16 13:26:40,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:26:40,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-10-16 13:26:40,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:26:41,251 INFO L225 Difference]: With dead ends: 109578 [2022-10-16 13:26:41,252 INFO L226 Difference]: Without dead ends: 109572 [2022-10-16 13:26:41,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:26:41,319 INFO L413 NwaCegarLoop]: 1705 mSDtfsCounter, 2104 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 597 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2280 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:26:41,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2280 Valid, 3425 Invalid, 1881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1281 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2022-10-16 13:26:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109572 states. [2022-10-16 13:26:47,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109572 to 101365. [2022-10-16 13:26:47,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101365 states, 77352 states have (on average 1.345214086255042) internal successors, (104055), 79308 states have internal predecessors, (104055), 17557 states have call successors, (17557), 5910 states have call predecessors, (17557), 6428 states have return successors, (33013), 17163 states have call predecessors, (33013), 17557 states have call successors, (33013) [2022-10-16 13:26:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101365 states to 101365 states and 154625 transitions. [2022-10-16 13:26:48,348 INFO L78 Accepts]: Start accepts. Automaton has 101365 states and 154625 transitions. Word has length 46 [2022-10-16 13:26:48,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:26:48,349 INFO L495 AbstractCegarLoop]: Abstraction has 101365 states and 154625 transitions. [2022-10-16 13:26:48,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:26:48,349 INFO L276 IsEmpty]: Start isEmpty. Operand 101365 states and 154625 transitions. [2022-10-16 13:26:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 13:26:48,351 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:26:48,351 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] [2022-10-16 13:26:48,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:26:48,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2022-10-16 13:26:48,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:26:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash 110223302, now seen corresponding path program 1 times [2022-10-16 13:26:48,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:26:48,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613262435] [2022-10-16 13:26:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:26:48,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:26:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:48,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:26:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:49,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:26:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 13:26:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-16 13:26:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:49,307 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 13:26:49,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:26:49,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613262435] [2022-10-16 13:26:49,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613262435] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:26:49,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219038130] [2022-10-16 13:26:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:26:49,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:26:49,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:26:49,311 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 13:26:49,327 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 13:26:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:26:49,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:26:49,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:26:50,466 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:26:50,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:26:50,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219038130] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:26:50,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:26:50,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2022-10-16 13:26:50,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121750786] [2022-10-16 13:26:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:26:50,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:26:50,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:26:50,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:26:50,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:26:50,470 INFO L87 Difference]: Start difference. First operand 101365 states and 154625 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 13:26:59,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:26:59,842 INFO L93 Difference]: Finished difference Result 254659 states and 390935 transitions. [2022-10-16 13:26:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:26:59,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2022-10-16 13:26:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:01,370 INFO L225 Difference]: With dead ends: 254659 [2022-10-16 13:27:01,370 INFO L226 Difference]: Without dead ends: 153308 [2022-10-16 13:27:01,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:27:01,787 INFO L413 NwaCegarLoop]: 2066 mSDtfsCounter, 1563 mSDsluCounter, 9761 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 11827 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:01,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 11827 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:27:01,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153308 states.