/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:47:03,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:47:03,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:47:03,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:47:03,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:47:03,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:47:03,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:47:03,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:47:03,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:47:03,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:47:03,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:47:03,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:47:03,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:47:03,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:47:03,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:47:03,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:47:03,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:47:03,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:47:03,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:47:03,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:47:03,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:47:03,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:47:03,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:47:03,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:47:03,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:47:03,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:47:03,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:47:03,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:47:03,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:47:03,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:47:03,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:47:03,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:47:03,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:47:03,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:47:03,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:47:03,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:47:03,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:47:03,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:47:03,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:47:03,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:47:03,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:47:03,742 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:47:03,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:47:03,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:47:03,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:47:03,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:47:03,781 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:47:03,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:47:03,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:47:03,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:47:03,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:47:03,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:47:03,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:47:03,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:47:03,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:47:03,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:47:03,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:47:03,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:47:03,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:47:03,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:47:03,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:47:03,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:47:03,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:47:03,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:47:03,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:47:03,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:47:03,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:47:03,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:47:04,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:47:04,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:47:04,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:47:04,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:47:04,252 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:47:04,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2020-12-22 14:47:04,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f216fa01f/3890d53e247e4e96b2e40de6d8646d3f/FLAGe6453733f [2020-12-22 14:47:05,624 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:47:05,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2020-12-22 14:47:05,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f216fa01f/3890d53e247e4e96b2e40de6d8646d3f/FLAGe6453733f [2020-12-22 14:47:05,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f216fa01f/3890d53e247e4e96b2e40de6d8646d3f [2020-12-22 14:47:05,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:47:05,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:47:05,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:47:05,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:47:05,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:47:05,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:47:05" (1/1) ... [2020-12-22 14:47:05,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e45d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:05, skipping insertion in model container [2020-12-22 14:47:05,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:47:05" (1/1) ... [2020-12-22 14:47:05,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:47:06,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:47:09,177 WARN L226 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[299705,299718] [2020-12-22 14:47:09,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:47:09,332 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:47:10,071 WARN L226 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[299705,299718] [2020-12-22 14:47:10,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:47:10,894 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:47:10,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10 WrapperNode [2020-12-22 14:47:10,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:47:10,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:47:10,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:47:10,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:47:10,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:11,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:12,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:47:12,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:47:12,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:47:12,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:47:12,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:12,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:12,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:12,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:13,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:13,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:13,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... [2020-12-22 14:47:13,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:47:13,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:47:13,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:47:13,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:47:13,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:47:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2020-12-22 14:47:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2020-12-22 14:47:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2020-12-22 14:47:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:47:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2020-12-22 14:47:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2020-12-22 14:47:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:47:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure handle_read_event_rsp [2020-12-22 14:47:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_read_event_rsp [2020-12-22 14:47:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_cmd [2020-12-22 14:47:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_cmd [2020-12-22 14:47:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_cmd [2020-12-22 14:47:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_cmd [2020-12-22 14:47:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmc_rsp [2020-12-22 14:47:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmc_rsp [2020-12-22 14:47:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2020-12-22 14:47:13,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2020-12-22 14:47:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure handle_oem_get_msg_cmd [2020-12-22 14:47:13,531 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_oem_get_msg_cmd [2020-12-22 14:47:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:47:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:47:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 14:47:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:47:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:47:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:47:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2020-12-22 14:47:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2020-12-22 14:47:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:47:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2020-12-22 14:47:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2020-12-22 14:47:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2020-12-22 14:47:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2020-12-22 14:47:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:47:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_rsp [2020-12-22 14:47:13,534 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_rsp [2020-12-22 14:47:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_err_response [2020-12-22 14:47:13,534 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_err_response [2020-12-22 14:47:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:47:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2020-12-22 14:47:13,535 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2020-12-22 14:47:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:47:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_rsp [2020-12-22 14:47:13,535 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_rsp [2020-12-22 14:47:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:47:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2020-12-22 14:47:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2020-12-22 14:47:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 14:47:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure handle_one_recv_msg [2020-12-22 14:47:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_one_recv_msg [2020-12-22 14:47:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure intf_err_seq [2020-12-22 14:47:13,537 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_err_seq [2020-12-22 14:47:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 14:47:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 14:47:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2020-12-22 14:47:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2020-12-22 14:47:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2020-12-22 14:47:13,539 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2020-12-22 14:47:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure smi_recv_tasklet [2020-12-22 14:47:13,539 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_recv_tasklet [2020-12-22 14:47:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2020-12-22 14:47:13,540 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2020-12-22 14:47:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:47:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2020-12-22 14:47:13,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2020-12-22 14:47:13,541 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-12-22 14:47:13,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:47:13,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:48:00,956 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:48:00,956 INFO L299 CfgBuilder]: Removed 3536 assume(true) statements. [2020-12-22 14:48:00,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:48:00 BoogieIcfgContainer [2020-12-22 14:48:00,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:48:00,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:48:00,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:48:00,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:48:00,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:47:05" (1/3) ... [2020-12-22 14:48:00,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a77cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:48:00, skipping insertion in model container [2020-12-22 14:48:00,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:47:10" (2/3) ... [2020-12-22 14:48:00,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a77cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:48:00, skipping insertion in model container [2020-12-22 14:48:00,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:48:00" (3/3) ... [2020-12-22 14:48:00,979 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2020-12-22 14:48:00,992 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:48:01,000 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2020-12-22 14:48:01,024 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2020-12-22 14:48:01,074 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:48:01,075 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:48:01,075 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:48:01,075 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:48:01,075 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:48:01,075 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:48:01,076 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:48:01,076 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:48:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states. [2020-12-22 14:48:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-12-22 14:48:01,187 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:48:01,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:48:01,189 INFO L429 AbstractCegarLoop]: === Iteration 1 === [##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr1ASSERT_VIOLATIONERROR_FUNCTION, handle_lan_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_ipmb_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:48:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:48:01,197 INFO L82 PathProgramCache]: Analyzing trace with hash -889034556, now seen corresponding path program 1 times [2020-12-22 14:48:01,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:48:01,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554776920] [2020-12-22 14:48:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:48:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:48:02,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:48:02,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554776920] [2020-12-22 14:48:02,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:48:02,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:48:02,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131537258] [2020-12-22 14:48:02,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:48:02,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:48:02,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:48:02,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:48:02,501 INFO L87 Difference]: Start difference. First operand 4153 states. Second operand 2 states. [2020-12-22 14:48:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:48:02,800 INFO L93 Difference]: Finished difference Result 8302 states and 12730 transitions. [2020-12-22 14:48:02,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:48:02,802 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 222 [2020-12-22 14:48:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:48:02,859 INFO L225 Difference]: With dead ends: 8302 [2020-12-22 14:48:02,860 INFO L226 Difference]: Without dead ends: 4113 [2020-12-22 14:48:02,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:48:02,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2020-12-22 14:48:03,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 4113. [2020-12-22 14:48:03,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4113 states. [2020-12-22 14:48:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 6198 transitions. [2020-12-22 14:48:03,210 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 6198 transitions. Word has length 222 [2020-12-22 14:48:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:48:03,210 INFO L481 AbstractCegarLoop]: Abstraction has 4113 states and 6198 transitions. [2020-12-22 14:48:03,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:48:03,211 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 6198 transitions. [2020-12-22 14:48:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-12-22 14:48:03,223 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:48:03,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:48:03,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:48:03,227 INFO L429 AbstractCegarLoop]: === Iteration 2 === [##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr1ASSERT_VIOLATIONERROR_FUNCTION, handle_lan_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_ipmb_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:48:03,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:48:03,233 INFO L82 PathProgramCache]: Analyzing trace with hash -811122806, now seen corresponding path program 1 times [2020-12-22 14:48:03,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:48:03,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126592927] [2020-12-22 14:48:03,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:48:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:48:04,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:48:04,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126592927] [2020-12-22 14:48:04,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:48:04,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:48:04,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586250504] [2020-12-22 14:48:04,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:48:04,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:48:04,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:48:04,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:48:04,644 INFO L87 Difference]: Start difference. First operand 4113 states and 6198 transitions. Second operand 3 states. [2020-12-22 14:48:05,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:48:05,181 INFO L93 Difference]: Finished difference Result 10445 states and 15886 transitions. [2020-12-22 14:48:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:48:05,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2020-12-22 14:48:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:48:05,245 INFO L225 Difference]: With dead ends: 10445 [2020-12-22 14:48:05,245 INFO L226 Difference]: Without dead ends: 6529 [2020-12-22 14:48:05,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:48:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6529 states. [2020-12-22 14:48:05,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6529 to 6480. [2020-12-22 14:48:05,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6480 states. [2020-12-22 14:48:05,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6480 states to 6480 states and 9857 transitions. [2020-12-22 14:48:05,600 INFO L78 Accepts]: Start accepts. Automaton has 6480 states and 9857 transitions. Word has length 222 [2020-12-22 14:48:05,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:48:05,604 INFO L481 AbstractCegarLoop]: Abstraction has 6480 states and 9857 transitions. [2020-12-22 14:48:05,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:48:05,605 INFO L276 IsEmpty]: Start isEmpty. Operand 6480 states and 9857 transitions. [2020-12-22 14:48:05,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-12-22 14:48:05,611 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:48:05,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:48:05,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:48:05,613 INFO L429 AbstractCegarLoop]: === Iteration 3 === [##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr1ASSERT_VIOLATIONERROR_FUNCTION, handle_lan_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_ipmb_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:48:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:48:05,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1628927213, now seen corresponding path program 1 times [2020-12-22 14:48:05,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:48:05,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504420509] [2020-12-22 14:48:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:48:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:48:06,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:48:06,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504420509] [2020-12-22 14:48:06,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:48:06,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:48:06,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370655321] [2020-12-22 14:48:06,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:48:06,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:48:06,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:48:06,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:48:06,514 INFO L87 Difference]: Start difference. First operand 6480 states and 9857 transitions. Second operand 5 states. [2020-12-22 14:48:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:48:11,250 INFO L93 Difference]: Finished difference Result 24829 states and 38161 transitions. [2020-12-22 14:48:11,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 14:48:11,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2020-12-22 14:48:11,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:48:11,374 INFO L225 Difference]: With dead ends: 24829 [2020-12-22 14:48:11,375 INFO L226 Difference]: Without dead ends: 18546 [2020-12-22 14:48:11,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:48:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18546 states. [2020-12-22 14:48:12,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18546 to 18472. [2020-12-22 14:48:12,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18472 states. [2020-12-22 14:48:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18472 states to 18472 states and 28391 transitions. [2020-12-22 14:48:12,412 INFO L78 Accepts]: Start accepts. Automaton has 18472 states and 28391 transitions. Word has length 232 [2020-12-22 14:48:12,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:48:12,414 INFO L481 AbstractCegarLoop]: Abstraction has 18472 states and 28391 transitions. [2020-12-22 14:48:12,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:48:12,414 INFO L276 IsEmpty]: Start isEmpty. Operand 18472 states and 28391 transitions. [2020-12-22 14:48:12,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-12-22 14:48:12,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:48:12,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:48:12,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:48:12,420 INFO L429 AbstractCegarLoop]: === Iteration 4 === [##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr1ASSERT_VIOLATIONERROR_FUNCTION, handle_lan_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_ipmb_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:48:12,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:48:12,421 INFO L82 PathProgramCache]: Analyzing trace with hash 800074059, now seen corresponding path program 1 times [2020-12-22 14:48:12,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:48:12,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749569193] [2020-12-22 14:48:12,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:48:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:48:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:48:13,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749569193] [2020-12-22 14:48:13,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:48:13,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:48:13,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128562569] [2020-12-22 14:48:13,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:48:13,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:48:13,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:48:13,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:48:13,525 INFO L87 Difference]: Start difference. First operand 18472 states and 28391 transitions. Second operand 5 states. [2020-12-22 14:48:19,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:48:19,021 INFO L93 Difference]: Finished difference Result 71917 states and 111517 transitions. [2020-12-22 14:48:19,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 14:48:19,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 233 [2020-12-22 14:48:19,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:48:19,321 INFO L225 Difference]: With dead ends: 71917 [2020-12-22 14:48:19,321 INFO L226 Difference]: Without dead ends: 53642 [2020-12-22 14:48:19,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:48:19,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53642 states. [2020-12-22 14:48:21,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53642 to 53568. [2020-12-22 14:48:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53568 states. [2020-12-22 14:48:21,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53568 states to 53568 states and 83015 transitions. [2020-12-22 14:48:21,589 INFO L78 Accepts]: Start accepts. Automaton has 53568 states and 83015 transitions. Word has length 233 [2020-12-22 14:48:21,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:48:21,590 INFO L481 AbstractCegarLoop]: Abstraction has 53568 states and 83015 transitions. [2020-12-22 14:48:21,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:48:21,590 INFO L276 IsEmpty]: Start isEmpty. Operand 53568 states and 83015 transitions. [2020-12-22 14:48:21,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-12-22 14:48:21,594 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:48:21,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:48:21,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 14:48:21,596 INFO L429 AbstractCegarLoop]: === Iteration 5 === [##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr1ASSERT_VIOLATIONERROR_FUNCTION, handle_lan_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_ipmb_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:48:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:48:21,597 INFO L82 PathProgramCache]: Analyzing trace with hash 875430804, now seen corresponding path program 1 times [2020-12-22 14:48:21,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:48:21,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270207792] [2020-12-22 14:48:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:48:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:48:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:48:22,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270207792] [2020-12-22 14:48:22,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:48:22,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:48:22,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709539158] [2020-12-22 14:48:22,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:48:22,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:48:22,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:48:22,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:48:22,556 INFO L87 Difference]: Start difference. First operand 53568 states and 83015 transitions. Second operand 5 states. [2020-12-22 14:48:29,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:48:29,612 INFO L93 Difference]: Finished difference Result 209729 states and 328819 transitions. [2020-12-22 14:48:29,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 14:48:29,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2020-12-22 14:48:29,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:48:30,409 INFO L225 Difference]: With dead ends: 209729 [2020-12-22 14:48:30,409 INFO L226 Difference]: Without dead ends: 156358 [2020-12-22 14:48:30,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:48:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156358 states. [2020-12-22 14:48:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156358 to 156284. [2020-12-22 14:48:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156284 states. [2020-12-22 14:48:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156284 states to 156284 states and 244963 transitions. [2020-12-22 14:48:37,134 INFO L78 Accepts]: Start accepts. Automaton has 156284 states and 244963 transitions. Word has length 234 [2020-12-22 14:48:37,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:48:37,135 INFO L481 AbstractCegarLoop]: Abstraction has 156284 states and 244963 transitions. [2020-12-22 14:48:37,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:48:37,135 INFO L276 IsEmpty]: Start isEmpty. Operand 156284 states and 244963 transitions. [2020-12-22 14:48:37,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-22 14:48:37,150 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:48:37,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:48:37,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:48:37,155 INFO L429 AbstractCegarLoop]: === Iteration 6 === [##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr1ASSERT_VIOLATIONERROR_FUNCTION, handle_lan_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_ipmb_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:48:37,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:48:37,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1083476654, now seen corresponding path program 1 times [2020-12-22 14:48:37,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:48:37,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979375743] [2020-12-22 14:48:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:48:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:48:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:48:37,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979375743] [2020-12-22 14:48:37,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:48:37,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:48:37,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148646339] [2020-12-22 14:48:37,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:48:37,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:48:37,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:48:37,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:48:37,856 INFO L87 Difference]: Start difference. First operand 156284 states and 244963 transitions. Second operand 5 states. [2020-12-22 14:48:50,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:48:50,945 INFO L93 Difference]: Finished difference Result 611543 states and 975467 transitions. [2020-12-22 14:48:50,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 14:48:50,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-12-22 14:48:50,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:48:54,145 INFO L225 Difference]: With dead ends: 611543 [2020-12-22 14:48:54,145 INFO L226 Difference]: Without dead ends: 455456 [2020-12-22 14:48:54,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:48:55,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455456 states. [2020-12-22 14:49:08,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455456 to 455382. [2020-12-22 14:49:08,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455382 states. [2020-12-22 14:49:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455382 states to 455382 states and 726910 transitions. [2020-12-22 14:49:11,946 INFO L78 Accepts]: Start accepts. Automaton has 455382 states and 726910 transitions. Word has length 235 [2020-12-22 14:49:11,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:49:11,947 INFO L481 AbstractCegarLoop]: Abstraction has 455382 states and 726910 transitions. [2020-12-22 14:49:11,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:49:11,947 INFO L276 IsEmpty]: Start isEmpty. Operand 455382 states and 726910 transitions. [2020-12-22 14:49:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-12-22 14:49:11,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:49:11,966 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:49:11,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:49:11,966 INFO L429 AbstractCegarLoop]: === Iteration 7 === [##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr1ASSERT_VIOLATIONERROR_FUNCTION, handle_lan_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_ipmb_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:49:11,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:49:11,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1357209967, now seen corresponding path program 1 times [2020-12-22 14:49:11,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:49:11,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028054093] [2020-12-22 14:49:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:49:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:49:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:49:12,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028054093] [2020-12-22 14:49:12,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:49:12,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 14:49:12,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836035743] [2020-12-22 14:49:12,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 14:49:12,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:49:12,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 14:49:12,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 14:49:12,720 INFO L87 Difference]: Start difference. First operand 455382 states and 726910 transitions. Second operand 4 states. [2020-12-22 14:49:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:49:28,031 INFO L93 Difference]: Finished difference Result 910664 states and 1453804 transitions. [2020-12-22 14:49:28,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 14:49:28,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 262 [2020-12-22 14:49:28,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:49:32,223 INFO L225 Difference]: With dead ends: 910664 [2020-12-22 14:49:32,225 INFO L226 Difference]: Without dead ends: 455479 [2020-12-22 14:49:34,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:49:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455479 states. [2020-12-22 14:49:53,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455479 to 452643. [2020-12-22 14:49:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452643 states. [2020-12-22 14:49:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452643 states to 452643 states and 722696 transitions. [2020-12-22 14:49:56,697 INFO L78 Accepts]: Start accepts. Automaton has 452643 states and 722696 transitions. Word has length 262 [2020-12-22 14:49:56,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:49:56,698 INFO L481 AbstractCegarLoop]: Abstraction has 452643 states and 722696 transitions. [2020-12-22 14:49:56,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 14:49:56,698 INFO L276 IsEmpty]: Start isEmpty. Operand 452643 states and 722696 transitions. [2020-12-22 14:49:56,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-12-22 14:49:56,707 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:49:56,707 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:49:56,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 14:49:56,708 INFO L429 AbstractCegarLoop]: === Iteration 8 === [##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_read_event_rspErr1ASSERT_VIOLATIONERROR_FUNCTION, handle_lan_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, handle_ipmb_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, handle_oem_get_msg_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:49:56,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:49:56,709 INFO L82 PathProgramCache]: Analyzing trace with hash -738382593, now seen corresponding path program 1 times [2020-12-22 14:49:56,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:49:56,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406351590] [2020-12-22 14:49:56,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:49:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:49:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:49:58,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406351590] [2020-12-22 14:49:58,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:49:58,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:49:58,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532309241] [2020-12-22 14:49:58,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:49:58,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:49:58,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:49:58,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:49:58,078 INFO L87 Difference]: Start difference. First operand 452643 states and 722696 transitions. Second operand 3 states.