/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-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:15:32,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:15:32,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:15:32,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:15:32,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:15:32,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:15:32,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:15:32,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:15:32,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:15:32,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:15:32,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:15:32,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:15:32,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:15:32,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:15:32,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:15:32,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:15:32,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:15:32,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:15:32,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:15:32,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:15:32,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:15:32,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:15:32,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:15:32,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:15:32,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:15:32,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:15:32,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:15:32,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:15:32,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:15:32,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:15:32,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:15:32,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:15:32,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:15:32,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:15:32,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:15:32,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:15:32,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:15:32,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:15:32,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:15:32,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:15:32,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:15:32,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:15:32,670 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:15:32,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:15:32,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:15:32,676 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:15:32,676 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:15:32,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:15:32,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:15:32,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:15:32,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:15:32,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:15:32,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:15:32,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:15:32,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:15:32,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:15:32,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:15:32,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:15:32,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:15:32,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:15:32,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:15:32,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:15:32,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:15:32,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:15:32,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:15:32,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:15:32,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:15:32,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:15:33,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:15:33,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:15:33,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:15:33,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:15:33,098 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:15:33,099 INFO L432 ainManager$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-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2020-12-22 14:15:33,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc46fcf78/7c71234e9c6b4d24ba67cf5c74807ee0/FLAG5739e9110 [2020-12-22 14:15:34,312 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:15:34,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2020-12-22 14:15:34,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc46fcf78/7c71234e9c6b4d24ba67cf5c74807ee0/FLAG5739e9110 [2020-12-22 14:15:34,695 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc46fcf78/7c71234e9c6b4d24ba67cf5c74807ee0 [2020-12-22 14:15:34,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:15:34,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:15:34,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:15:34,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:15:34,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:15:34,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:15:34" (1/1) ... [2020-12-22 14:15:34,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b26b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:34, skipping insertion in model container [2020-12-22 14:15:34,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:15:34" (1/1) ... [2020-12-22 14:15:34,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:15:34,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:15:38,035 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-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[314027,314040] [2020-12-22 14:15:38,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:15:38,631 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:15:39,265 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-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[314027,314040] [2020-12-22 14:15:39,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:15:40,357 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:15:40,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40 WrapperNode [2020-12-22 14:15:40,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:15:40,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:15:40,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:15:40,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:15:40,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:40,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:41,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:15:41,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:15:41,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:15:41,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:15:41,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:41,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:41,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:41,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:42,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:42,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:42,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (1/1) ... [2020-12-22 14:15:43,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:15:43,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:15:43,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:15:43,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:15:43,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (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 14:15:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_cmd [2020-12-22 14:15:43,256 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_cmd [2020-12-22 14:15:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmc_rsp [2020-12-22 14:15:43,257 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmc_rsp [2020-12-22 14:15:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure handle_oem_get_msg_cmd [2020-12-22 14:15:43,257 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_oem_get_msg_cmd [2020-12-22 14:15:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2020-12-22 14:15:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:15:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:15:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2020-12-22 14:15:43,259 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2020-12-22 14:15:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:15:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2020-12-22 14:15:43,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2020-12-22 14:15:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:15:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_err_response [2020-12-22 14:15:43,261 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_err_response [2020-12-22 14:15:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2020-12-22 14:15:43,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2020-12-22 14:15:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:15:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:15:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 14:15:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure handle_one_recv_msg [2020-12-22 14:15:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_one_recv_msg [2020-12-22 14:15:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 14:15:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 14:15:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2020-12-22 14:15:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2020-12-22 14:15:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2020-12-22 14:15:43,263 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2020-12-22 14:15:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:15:43,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:15:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2020-12-22 14:15:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2020-12-22 14:15:43,263 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2020-12-22 14:15:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:15:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2020-12-22 14:15:43,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2020-12-22 14:15:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:15:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure handle_read_event_rsp [2020-12-22 14:15:43,264 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_read_event_rsp [2020-12-22 14:15:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_cmd [2020-12-22 14:15:43,264 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_cmd [2020-12-22 14:15:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2020-12-22 14:15:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2020-12-22 14:15:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:15:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:15:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:15:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2020-12-22 14:15:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2020-12-22 14:15:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_rsp [2020-12-22 14:15:43,265 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_rsp [2020-12-22 14:15:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:15:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_rsp [2020-12-22 14:15:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_rsp [2020-12-22 14:15:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2020-12-22 14:15:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2020-12-22 14:15:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure intf_err_seq [2020-12-22 14:15:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_err_seq [2020-12-22 14:15:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure smi_recv_tasklet [2020-12-22 14:15:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_recv_tasklet [2020-12-22 14:15:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2020-12-22 14:15:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2020-12-22 14:15:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:15:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2020-12-22 14:15:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2020-12-22 14:15:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-12-22 14:16:29,220 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:16:29,221 INFO L299 CfgBuilder]: Removed 3392 assume(true) statements. [2020-12-22 14:16:29,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:16:29 BoogieIcfgContainer [2020-12-22 14:16:29,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:16:29,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:16:29,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:16:29,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:16:29,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:15:34" (1/3) ... [2020-12-22 14:16:29,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7826f375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:16:29, skipping insertion in model container [2020-12-22 14:16:29,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:40" (2/3) ... [2020-12-22 14:16:29,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7826f375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:16:29, skipping insertion in model container [2020-12-22 14:16:29,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:16:29" (3/3) ... [2020-12-22 14:16:29,240 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2020-12-22 14:16:29,249 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:16:29,256 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 14:16:29,274 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 14:16:29,328 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:16:29,329 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:16:29,329 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:16:29,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:16:29,329 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:16:29,329 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:16:29,329 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:16:29,329 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:16:29,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states. [2020-12-22 14:16:29,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-12-22 14:16:29,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:29,422 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] [2020-12-22 14:16:29,423 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:29,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1503774384, now seen corresponding path program 1 times [2020-12-22 14:16:29,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:29,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665228461] [2020-12-22 14:16:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:30,808 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 14:16:30,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665228461] [2020-12-22 14:16:30,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:30,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:16:30,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844364916] [2020-12-22 14:16:30,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:16:30,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:30,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:16:30,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:16:30,838 INFO L87 Difference]: Start difference. First operand 4129 states. Second operand 2 states. [2020-12-22 14:16:31,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:31,105 INFO L93 Difference]: Finished difference Result 8254 states and 12713 transitions. [2020-12-22 14:16:31,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:16:31,107 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 210 [2020-12-22 14:16:31,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:31,167 INFO L225 Difference]: With dead ends: 8254 [2020-12-22 14:16:31,168 INFO L226 Difference]: Without dead ends: 4107 [2020-12-22 14:16:31,196 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 14:16:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4107 states. [2020-12-22 14:16:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4107 to 4107. [2020-12-22 14:16:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4107 states. [2020-12-22 14:16:31,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 6200 transitions. [2020-12-22 14:16:31,489 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 6200 transitions. Word has length 210 [2020-12-22 14:16:31,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:31,490 INFO L481 AbstractCegarLoop]: Abstraction has 4107 states and 6200 transitions. [2020-12-22 14:16:31,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:16:31,490 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 6200 transitions. [2020-12-22 14:16:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-12-22 14:16:31,503 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:31,504 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] [2020-12-22 14:16:31,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:16:31,506 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:31,511 INFO L82 PathProgramCache]: Analyzing trace with hash -394926700, now seen corresponding path program 1 times [2020-12-22 14:16:31,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:31,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620364523] [2020-12-22 14:16:31,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:32,779 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 14:16:32,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620364523] [2020-12-22 14:16:32,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:32,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:16:32,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564111343] [2020-12-22 14:16:32,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:32,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:32,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:32,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:16:32,786 INFO L87 Difference]: Start difference. First operand 4107 states and 6200 transitions. Second operand 3 states. [2020-12-22 14:16:35,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:35,352 INFO L93 Difference]: Finished difference Result 11822 states and 18051 transitions. [2020-12-22 14:16:35,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:35,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-12-22 14:16:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:35,407 INFO L225 Difference]: With dead ends: 11822 [2020-12-22 14:16:35,407 INFO L226 Difference]: Without dead ends: 7912 [2020-12-22 14:16:35,423 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 14:16:35,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7912 states. [2020-12-22 14:16:35,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7912 to 7908. [2020-12-22 14:16:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7908 states. [2020-12-22 14:16:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7908 states to 7908 states and 12054 transitions. [2020-12-22 14:16:35,711 INFO L78 Accepts]: Start accepts. Automaton has 7908 states and 12054 transitions. Word has length 210 [2020-12-22 14:16:35,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:35,715 INFO L481 AbstractCegarLoop]: Abstraction has 7908 states and 12054 transitions. [2020-12-22 14:16:35,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:35,715 INFO L276 IsEmpty]: Start isEmpty. Operand 7908 states and 12054 transitions. [2020-12-22 14:16:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-12-22 14:16:35,720 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:35,721 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] [2020-12-22 14:16:35,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:16:35,722 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:35,724 INFO L82 PathProgramCache]: Analyzing trace with hash 477537030, now seen corresponding path program 1 times [2020-12-22 14:16:35,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:35,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775748584] [2020-12-22 14:16:35,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:37,004 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 14:16:37,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775748584] [2020-12-22 14:16:37,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:37,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:16:37,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149625745] [2020-12-22 14:16:37,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:37,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:37,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:37,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:16:37,008 INFO L87 Difference]: Start difference. First operand 7908 states and 12054 transitions. Second operand 3 states. [2020-12-22 14:16:37,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:37,589 INFO L93 Difference]: Finished difference Result 23281 states and 35671 transitions. [2020-12-22 14:16:37,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:37,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-12-22 14:16:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:37,711 INFO L225 Difference]: With dead ends: 23281 [2020-12-22 14:16:37,712 INFO L226 Difference]: Without dead ends: 15570 [2020-12-22 14:16:37,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:16:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15570 states. [2020-12-22 14:16:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15570 to 15542. [2020-12-22 14:16:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15542 states. [2020-12-22 14:16:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15542 states to 15542 states and 23798 transitions. [2020-12-22 14:16:38,448 INFO L78 Accepts]: Start accepts. Automaton has 15542 states and 23798 transitions. Word has length 214 [2020-12-22 14:16:38,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:38,450 INFO L481 AbstractCegarLoop]: Abstraction has 15542 states and 23798 transitions. [2020-12-22 14:16:38,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 15542 states and 23798 transitions. [2020-12-22 14:16:38,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-12-22 14:16:38,454 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:38,456 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] [2020-12-22 14:16:38,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:16:38,456 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:38,457 INFO L82 PathProgramCache]: Analyzing trace with hash 918707819, now seen corresponding path program 1 times [2020-12-22 14:16:38,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:38,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696138735] [2020-12-22 14:16:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:39,430 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 14:16:39,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696138735] [2020-12-22 14:16:39,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:39,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 14:16:39,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953852821] [2020-12-22 14:16:39,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 14:16:39,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:39,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 14:16:39,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 14:16:39,433 INFO L87 Difference]: Start difference. First operand 15542 states and 23798 transitions. Second operand 4 states. [2020-12-22 14:16:40,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:40,581 INFO L93 Difference]: Finished difference Result 27085 states and 41532 transitions. [2020-12-22 14:16:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 14:16:40,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 216 [2020-12-22 14:16:40,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:40,625 INFO L225 Difference]: With dead ends: 27085 [2020-12-22 14:16:40,626 INFO L226 Difference]: Without dead ends: 11740 [2020-12-22 14:16:40,668 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 14:16:40,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11740 states. [2020-12-22 14:16:41,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11740 to 11740. [2020-12-22 14:16:41,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11740 states. [2020-12-22 14:16:41,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11740 states to 11740 states and 17938 transitions. [2020-12-22 14:16:41,219 INFO L78 Accepts]: Start accepts. Automaton has 11740 states and 17938 transitions. Word has length 216 [2020-12-22 14:16:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:41,220 INFO L481 AbstractCegarLoop]: Abstraction has 11740 states and 17938 transitions. [2020-12-22 14:16:41,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 14:16:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 11740 states and 17938 transitions. [2020-12-22 14:16:41,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-12-22 14:16:41,231 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:41,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:41,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 14:16:41,232 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:41,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:41,233 INFO L82 PathProgramCache]: Analyzing trace with hash -901076384, now seen corresponding path program 1 times [2020-12-22 14:16:41,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:41,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24853306] [2020-12-22 14:16:41,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:42,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-12-22 14:16:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:42,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-12-22 14:16:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:42,415 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 14:16:42,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24853306] [2020-12-22 14:16:42,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:42,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 14:16:42,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845296134] [2020-12-22 14:16:42,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 14:16:42,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:42,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 14:16:42,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 14:16:42,435 INFO L87 Difference]: Start difference. First operand 11740 states and 17938 transitions. Second operand 6 states. [2020-12-22 14:17:27,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:17:27,192 INFO L93 Difference]: Finished difference Result 46667 states and 72246 transitions. [2020-12-22 14:17:27,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 14:17:27,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-12-22 14:17:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:17:27,407 INFO L225 Difference]: With dead ends: 46667 [2020-12-22 14:17:27,407 INFO L226 Difference]: Without dead ends: 35124 [2020-12-22 14:17:27,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:17:27,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35124 states. [2020-12-22 14:17:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35124 to 34236. [2020-12-22 14:17:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34236 states. [2020-12-22 14:17:28,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34236 states to 34236 states and 52712 transitions. [2020-12-22 14:17:28,943 INFO L78 Accepts]: Start accepts. Automaton has 34236 states and 52712 transitions. Word has length 251 [2020-12-22 14:17:28,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:17:28,944 INFO L481 AbstractCegarLoop]: Abstraction has 34236 states and 52712 transitions. [2020-12-22 14:17:28,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 14:17:28,944 INFO L276 IsEmpty]: Start isEmpty. Operand 34236 states and 52712 transitions. [2020-12-22 14:17:28,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-12-22 14:17:28,952 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:17:28,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:17:28,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:17:28,953 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:17:28,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:17:28,954 INFO L82 PathProgramCache]: Analyzing trace with hash 151531793, now seen corresponding path program 1 times [2020-12-22 14:17:28,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:17:28,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026226476] [2020-12-22 14:17:28,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:17:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:17:29,840 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-22 14:17:29,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-12-22 14:17:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:17:29,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-12-22 14:17:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:17:29,973 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 14:17:29,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026226476] [2020-12-22 14:17:29,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:17:29,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 14:17:29,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349124168] [2020-12-22 14:17:29,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 14:17:29,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:17:29,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 14:17:29,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 14:17:29,976 INFO L87 Difference]: Start difference. First operand 34236 states and 52712 transitions. Second operand 6 states. [2020-12-22 14:18:23,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:18:23,879 INFO L93 Difference]: Finished difference Result 136583 states and 213066 transitions. [2020-12-22 14:18:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 14:18:23,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-12-22 14:18:23,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:18:24,410 INFO L225 Difference]: With dead ends: 136583 [2020-12-22 14:18:24,410 INFO L226 Difference]: Without dead ends: 102544 [2020-12-22 14:18:24,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:18:24,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102544 states. [2020-12-22 14:18:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102544 to 100662. [2020-12-22 14:18:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100662 states. [2020-12-22 14:18:29,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100662 states to 100662 states and 156169 transitions. [2020-12-22 14:18:29,811 INFO L78 Accepts]: Start accepts. Automaton has 100662 states and 156169 transitions. Word has length 252 [2020-12-22 14:18:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:18:29,812 INFO L481 AbstractCegarLoop]: Abstraction has 100662 states and 156169 transitions. [2020-12-22 14:18:29,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 14:18:29,812 INFO L276 IsEmpty]: Start isEmpty. Operand 100662 states and 156169 transitions. [2020-12-22 14:18:29,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-12-22 14:18:29,820 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:18:29,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:18:29,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:18:29,821 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr1ASSERT_VIOLATIONERROR_FUNCTION, clean_up_interface_dataErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:18:29,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:18:29,822 INFO L82 PathProgramCache]: Analyzing trace with hash 151698866, now seen corresponding path program 1 times [2020-12-22 14:18:29,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:18:29,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549388739] [2020-12-22 14:18:29,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:18:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:18:30,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2020-12-22 14:18:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:18:30,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-12-22 14:18:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:18:30,894 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 14:18:30,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549388739] [2020-12-22 14:18:30,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:18:30,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 14:18:30,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513127891] [2020-12-22 14:18:30,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 14:18:30,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:18:30,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 14:18:30,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 14:18:30,897 INFO L87 Difference]: Start difference. First operand 100662 states and 156169 transitions. Second operand 6 states.